Stability and Metastability of Li3YCl6 and Li3HoCl6 Hiroaki Ito, Yuki Nakahira, Naoki Ishimatsu, Yosuke Goto, Aichi Yamashita, Yoshikazu Mizuguchi, Chikako Moriyoshi, Takashi Toyao, Ken-ichi Shimizu, Hiroshi Oike, Masanori Enoki, Nataly Carolina Rosero-Navarro, Akira Miura, and Kiyoharu Tadanaga Bull. Chem. Soc. Japan (2023), https://doi.org/10.1246/bcsj.20230132
Large Perpendicular Magnetic Anisotropy Induced by an Intersite Charge Transfer in Strained EuVO2H Films M. Namba, H. Takatsu, R. Mikita, Y. Sijia, K. Murayama, H. Li, R. Terada, C. Tassel, H. Ubukata, M. Ochi, R. Saez-Puche, E. P. Latasa, N. Ishimatsu, D. Shiga, H. Kumigashira, K. Kinjo, S. Kitagawa, K. Ishida, T. Terashima, K. Fujita, T. Mashiko, K. Yanagisawa, K. Kimoto, and H. Kageyama J. Am. Chem. Soc. (2023), 145, 40, 21807-21816 https://doi.org/10.1021/jacs.3c04521
Lattice constants and magnetism of L10-ordered FePt under high pressure S. Sawada, K. Okai, H. Fukui, R. Takahashi, N. Ishimatsu, H. Maruyama, N. Kawamura, S. Kawaguchi, N. Hirao, T. Seki, K. Takanashi, S. Ohmura, and H. Wadati Appl. Phys. Lett. 122, 152406 (2023);[5 Pages] https://doi.org/10.1063/5.0139441
Pressure-induced Structural Phase Transition and New Superconducting Phase in UTe2 Fuminori Honda, Shintaro Kobayashi, Naomi Kawamura, Saori I. Kawaguchi, Takatsugu Koizumi, Yoshiki J. Sato, Yoshiya Homma, Naoki Ishimatsu, Jun Gouchi, Yoshiya Uwatoko, Hisatomo Harima, Jacques Flouquet, and Dai Aoki J. Phys. Soc. Jpn. 92, 044702 (2023) [10 Pages] DOI: 10.7566/JPSJ.92.044702
Ferrimagnetic coupling between cobalt and light rare-earth samarium induced by dense hydrogenation of SmCo5 permanent magnet under high pressures Naoki Ishimatsu, Kentaro Ishimoto, Kouji Sakaki, Yumiko Nakamura, Naomi Kawamura, Saori I. Kawaguchi, Naohisa Hirao, and Satoshi Nakano Phys. Rev. Materials 7, 024401 (2023) [8 Pages] DOI: 10.1103/PhysRevMaterials.7.024401
2022年
Visualization of the disordered structure of Fe-Ni Invar alloys by Reverse Monte Carlo calculations Yusuke Kubo, Naoki Ishimatsu, Naoto Kitamura, Naomi Kawamura, Sho Kakizawa, Masaichiro Mizumaki, Ryuichi Nomura, Tetsuo Irifune and Hitoshi Sumiya Front. Mater. 9:954110. (2022) [7 Pages] DOI: 10.3389/fmats.2022.954110
2021年
Temperature dependence of electronic structure on the ferroelectric phase transition of BaTiO3 Yasuhisa Tezuka, Shunsuke Nozawa, Nobuo Nakajima, and Toshiaki Iwazumi Phys. Rev. B 104, 235148 (2021) [7 Pages] DOI: 10.1103/PhysRevB.104.235148
Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi2 Resta A. Susilo, Wen Deng, Jiajia Feng, Aifeng Wang, Naomi Kawamura, Naoki Ishimatsu, Saori Kawaguchi, Mingzhi Yuan, He Li, Weijun Ren, Takeshi Nakagawa, Cedomir Petrovic, and Bin Chen Phys. Rev. Research 3, 043028 (2021) [10 Pages] doi:10.1103/PhysRevResearch.3.043028
Elongation of Fe-Fe atomic pairs in the Invar alloy Fe65Ni35 N. Ishimatsu, S. Iwasaki, M. Kousa, S. Kato, N. Nakajima, N. Kitamura, N. Kawamura, M. Mizumaki, S. Kakizawa, R. Nomura, T. Irifune, and H. Sumiya Phys. Rev. B 103, L220102 (2021) [5 Pages] doi:10.1103/PhysRevB.103.L220102
Dielectric response of BaTiO3 electronic states under AC fields via microsecond time-resolved X-ray absorption spectroscopy S. Kato, N. Nakajima, S. Yasui, S. Yasuhara, D. Fue, J. Adachi, H. Nitani, Y. Takeichi, A. Anspoks Acta Materialia 207, 116681 (2021) [6 Pages] doi:10.1016/j.actamat.2021.116681
2020年
Strong variant selection observed in the α-ε martensitic transition of iron under quasihydrostatic compression along [111]α Naoki Ishimatsu, Daiki Miyashita, and Saori I. Kawaguchi Phys. Rev. B 102, 054106 (2020) [10 Pages] doi:10.1103/PhysRevB.102.054106
Melting curve and phase relations of Fe-Ni alloys: implications for the Earth’s core composition R. Torchio, S. Boccato, F. Miozzi, A. D. Rosa, N. Ishimatsu, I. Kantor, N. Sevelin‐Radiguet, R. Briggs, C. Meneghini, T. Irifune, G. Morard Geophys. Res. Lett. 47, e2020GL088169 (2020) [6 Pages] doi:10.1029/2020GL088169
Photoluminescence mechanism of self-activated titanate phosphors investigated by x-ray absorption spectroscopy under UV irradiation Dongxiao Fan, Nobuo Nakajima, and Seiya Kato J. Phys.:Condens. Matter 32, 355503 (2020) [6 Pages] doi:10.1088/1361-648X/ab8cdd
An application of NPD to double-stage diamond anvil cells: XAS spectra of rhenium metal under high pressures above 300 GPa K. Kuramochi, N. Ishimatsu, T. Sakai, N. Kawamura, T. Irifune High Pressure Res. 40, 119-129 (2020) [11 Pages] doi:10.1080/08957959.2019.1702174
Element-selective elastic properties of Fe65Ni35 Invar alloy and Fe72Pt28 alloy studied by extended X-ray absorption fine structure M. Kousa, S. Iwasaki, N. Ishimatsu, N. Kawamura, R. Nomura, S. Kakizawa, M. Mizumaki, H. Sumiya, T. Irifune High Pressure Res. 40, 130-139 (2020) [10 Pages] doi:10.1080/08957959.2019.1702175
Conical support for double-stage diamond anvil apparatus Takeshi Sakai, Takehiko Yagi, Ryosuke Takeda, Toshiki Hamatani, Yuki Nakamoto, Hirokazu Kadobayashi, Hideto Mimori, Saori I. Kawaguchi, Naohisa Hirao, Keitaro Kuramochi, Naoki Ishimatsu, Takehiro Kunimoto, Hiroaki Ohfuji, Yasuo Ohishi, Tetsuo Irifune and Katsuya Shimizu High Pressure Res. 40, 12-21 (2020) [10 Pages] doi:10.1080/08957959.2019.1691190
2019年
Pressure-Induced Collapse of the Guest Eu Off-Centering in Type-I Clathrate Eu8Ga16Ge30 Naoki Ishimatsu, Kei Yokoyama, Takahiro Onimaru, Toshiro Takabatake, Koichiro Suekuni , Naomi Kawamura , Satoshi Tsutsui , Masaichiro Mizumaki, Toshiaki Ina, Tetsu Watanuki, Vera Cuartero, , Olivier Mathon, Sakura Pascarelli, Eiji Nishibori, and Tetsuo Irifune J. Phys. Soc. Jpn. 88, 114601 (2019) [9 Pages]
2018年
Emergence of a new valence-ordered structure and collapse of the magnetic order under high pressure in EuPtP A. Mitsuda, S. Manabe, M. Umeda, H. Wada, K. Matsubayashi, Y. Uwatoko, M. Mizumaki, N. Kawamura, K. Nitta, N. Hirao, Y. Ohishi and N. Ishimatsu J. Phys: Condens. Matter 30, 105603 (2018) [8 pages]
Kondo-like behavior near the magnetic instability in SmB6: Temperature and pressure dependences of the Sm valence N. Emi, N. Kawamura, M. Mizumaki, T. Koyama, N. Ishimatsu, G. Prista, T. Kagayama, K. Shimizu, Y. Osanai, F. Iga, and T. Mito Phys. Rev. B 97, 161116(R) (2018) [5 pages]
Pressure and magnetic field effects on the valence transition of EuRh2Si2 A. Mitsuda, E. Kishaba, T. Fujimoto, K. Oyama, H. Wada, M. Mizumaki, N. Kawamura, N. Ishimatsu Physica B: Condens. Matter 536, 427-431 (2018) [6 pages]
Temperature and pressure dependences of Sm valence in intermediate valence compound SmB6 N. Emi, T. Mito, N. Kawamura, M. Mizumaki, N. Ishimatsu, G. Prista, T. Kagayama, K. Shimizu, Y. Osanai, F. Iga Physica B: Condensed Matter 536, 197-199 (2018) [3 pages]
2017年
Electronic states in the pressure-induced magnetically ordered phase in SmB6 T. Mito, N. Emi, N. Kawamura, M. Mizumaki, T. Koyama, K. Ueda, N. Ishimatsu and F. Iga J. Phys.: Conference Series 868, 012008 (2017) [4 pages]
Polarization-Dependent Ti 2p-Resonant X-ray Raman Scattering from Ti2O3 Y. Tezuka, N. Nakajima, J. Adachi, O. Morimoto, H. Sato, and T. Uozumi J. Phys. Soc. Jpn. 86, 124713 (2017) [5 pages]
Isotropic shrinkage of the oxygen octahedron in SrTiO3 under uniaxial pressure C. Lu, C. Temba, N. Nakajima, S. Kawakami, N. Ishimatsu, and H. Maruyama J. Phys: Condens. Matter 29, 395502 (2017) [5 pages]
Electronic structure study of CaCu3Ti4O12 by means of X-ray Raman scattering Y. Tezuka, Y. Yokouchi, S. Sasaki, S. Nakamoto, K. Nishiyama, M. Mikami, H.J. Im, T. Watanabe, S. Nozawa, N. Nakajima, T. Iwazumi J. Electron. Spectrosc. Relat. Phenom. 220, 114 (2017) [4 pages]
Effect of Fe-site Substitution on Pressure-induced Spin Transition in SrFeO2 T. Kawakami, T. Yamamoto, K.Yata, M. Ishii, Y. Watanabe, M. Mizumaki, N..Kawamura, N. Ishimatsu, H. Takahashi, T. Okada, T. Yagi, H. Kageyama J. Phys. Soc. Jpn., 86, 124716 (2017) [6 pages]
Synthesis of TiO2 nanotubes: effect of post-treatment on crystallinity and photocatalytic activity Kyle Moriai, Nobuo Nakajima, Chikako Moriyoshi and Hiroshi Maruyama Mater. Res. Express 4 (2017) 045017 [9 pages]
Relationship between element-selective electronic states and hydrogen absorption properties of Pd-M (M = Ru, Rh, Ag, and Au) alloys Kanako Fujii, Naoki Ishimatsu, Hiroshi Maruyama, Tatsuya Shishidou, Shinjiro Hayakawa, and Naomi Kawamura Phys. Rev B 95, 024116 (2017) [7 pages]
Observation of the flexoelectricity of a SrTiO3 single crystal by x-ray absorption and emission spectroscopies C. Lu, N. Nakajima, and H. Maruyama J. Phys.:Condens. Matter, 29, 045702 (2017) [5 pages]
2016年
Applications of nano-polycrystalline diamond anvils to X-ray absorption spectroscopy under high pressure N. Ishimatsu, N. Kawamura, M. Mizumaki, H. Maruyama, H. Sumiya and T. Irifune High Pressure Research 36, 381-390 (2016)
Pressure-induced valence change toward the QCP in 4f-electron compounds determined by X-ray absorption spectroscopy K. Matsubayashi, N. Kawamura, M. Mizumaki, and N. Ishimatsu High Pressure Research 36, 419-428 (2016)
Pressure-Driven Spin Crossover Involving Polyhedral Transformation in Layered Perovskite Cobalt Oxyfluoride Y. Tsujimoto, S. Nakano, N. Ishimatsu, M. Mizumaki, N. Kawamura, T. Kawakami, Y. Matsushita, K. Yamaura Sci. Rep. 6, 36253 (2016); doi: 10.1038/srep36253
High-Pressure Hydrogen Induced Spin Reconfiguration in GdFe2 Observed by 57Fe Polarized Synchrotron Radiation Mossbauer Spectroscopy with Nuclear Bragg Monochromator T. Mitsui, Y. Imai, N. Hirao, T. Matsuoka, Y. Nakamura, K. Sakaki, H. Enoki, N. Ishimatsu, R. Masuda, M. Seto J. Phys. Soc. Jpn. 85, 123707 (2016) [5 Pages]
X線磁気円二色性によるラーベス相RFe2 (R=Y, Gd) 水素化物の高圧下の磁気状態の研究 (XMCD Study of Magnetic States in Laves Phase RFe2 (R=Y, Gd) Hydrides under High Pressure) 石松 直樹, 圓山 裕, 河村 直己, 水牧 仁一朗, 中野 智志, 三井 隆也, 中村 優美子, 榊 浩司, 榎 浩利 The SPring-8/SACLA Research Report 04-01_2012A1385 (2016)
Two-Step Suppression of Charge Disproportionation in CaCu3Fe4O12 under High Pressure (Editors’ Choice) Takateru Kawakami, Yoshihiro Sekiya, Ayano Mimura, Kana Kobayashi, Keita Tokumichi, Ikuya Yamada, Masaichiro Mizumaki, Naomi Kawamura, Yuichi Shimakawa, Yasuo Ohishi, Naohisa Hirao, Naoki Ishimatsu, Naoaki Hayashi, and Mikio Takano J. Phys. Soc. Jpn. 85, 034716 (2016) [6 Pages]
Mechanism of intrinsic dipole moment induction in quantum paraelectric SrTiO3 Shuhei Kawakami, Nobuo Nakajima, Masashi Nakatake, Naomi Kawamura, Masaichiro Mizumaki and Hiroshi Maruyama Jpn. J. Appl. Phys. 54, 10NC03/1-5 (2015)
Differences in local structure around Co and Fe of the BiCo1-xFexO3 system determined by x-ray absorption fine structure N. Ishimatsu, T. Watanabe, K. Oka, M. Azuma, M. Mizumaki, K. Nitta, T. Ina, and N. Kawamura Phys. Rev. B 92, 054108/1-9 (2015)
X-ray absorption study of the local dipole moment in SrTiO3 under uniaxial pressure Chisato Temba, Shuhei Kawakami, Nobuo Nakajima, Naoki Ishimatsu, Hiroshi Maruyama Journal of the Korean Physical Society, 66 (2015) 1386-1388.
Pressure-Induced Valence Crossover and Novel Metamagnetic Behavior near the Antiferromagnetic Quantum Phase Transition of YbNi3Ga9 K. Matsubayashi, T. Hirayama, T. Yamashita, S. Ohara, N. Kawamura, M. Mizumaki, N. Ishimatsu, S. Watanabe, K. Kitagawa, and Y. Uwatoko Phys. Rev. Lett 114, 086401 (2015)
High Pressure Properties for Electrical Resistivity and Ce Valence State of Heavy-Fermion Antiferromagnet Ce2NiGa12 N. Kawamura, R. Sasaki, K. Matsubayashi, N. Ishimatsu, M. Mizumaki, Y. Uwatoko, S. Ohara, and S. Watanabe J. Phys; Conference Series 568, 042015 (2014)
α-ε transition pathway of iron under quasihydrostatic pressure conditions N. Ishimatsu, Y. Sata, H. Maruyama, T. Watanuki, N. Kawamura, M. Mizumaki, T. Irifune, and H. Sumiya Phys. Rev. B 90, 014422 (2014)
Core Excitations in Resonant X-ray Raman Scattering of Titanium Oxides:An Approach to Studying Electronic Structures Y. Tezuka, T. Sasaki, Y. Fujita, T. Iwamoto, H. Osawa, S. Nozawa, N. Nakajima, H. Sato, and T. Iwazumi J. Phys. Soc. Jpn. 83, 014707 (2014)
Simultaneous Pressure-Induced Magnetic and Valence Transitions in Type-I Clathrate Eu8Ga16Ge30 T. Onimaru, S. Tsutsui, M. Mizumaki, N. Kawamura, N. Ishimatsu, M. A. Avila, S. Yamamoto, H. Yamane, K. Suekuni, K. Umeo, T. Kume, S. Nakano, and T. Takabatake J. Phys. Soc. Jpn. 83, 013701 (2014)
Structural, magnetic and electronic state characterization of L1 0-type ordered FeNi alloy extracted from a natural meteorite M Kotsugi, H Maruyama, N Ishimatsu, N Kawamura, M Suzuki, M Mizumaki, K Osaka, T Matsumoto, T Ohkochi, T Ohtsuki, T Kojima, M Mizuguchi, K Takanashi and Y Watanabe J. Phys.: Condens. Matter 26 064206 (2014)
2013年
Direct Observation of Ultraviolet-Induced One-Dimensional Vibration of Ti Ions in Red Phosphor Sr(Ti0.939,Al0.061)O3:Pr3+ N. Nakajima, M. Deguchi, H. Maruyama, H. Osawa, C. Moriyoshi, Y. Kuroiwa Jpn. J. Appl. Phys. 52 (2013) 09KF05
Electric-Field-Induced Insulator-Metal Transition in Ca2RuO4 Probed by X-ray Absorption and Emission Spectroscopy Mariko Sakaki, Nobuo Nakajima, Fumihiko Nakamura, Yasuhisa Tezuka, and Takashi Suzuki J. Phys. Soc. Jpn. 82 (2013) 093707
UV-Induced Change in the Electronic Structure of SrTiO3 at Low Temperature Probed by Resonant X-ray Emission Spectroscopy Shuhei Kawakami, Nobuo Nakajima, Takahiro Takigawa, Masashi Nakatake, Hiroshi Maruyama, Yasuhisa Tezuka, and Toshiaki Iwazumi J. Phys. Soc. Jpn. 82 (2013) 053701
Pressure-Temperature Phase Diagram of Sm Valence State in a Heavy Fermion Compound SmOs4Sb12 S. Tsutsui, N. Kawamura, M. Mizumaki, N. Ishimatsu, H. Maruyama, H. Sugawara, and H. Sato J. Phys. Soc. Jpn. 82 (2013) 023707
2012年
Enhancement of dielectric constant of BaTiO3 nanoparticles studied by resonant x-ray emission spectroscopy N. Nakajima, M. Oki, Y. Isohama, H. Maruyama, Y. Tezuka, K. Ishiji, T. Iwazumi, and K. Okada Phys. Rev. B 86 (2012) 224114
Hydrogen-induced modification of the electronic structure and magnetic states in Fe, Co, and Ni monohydrides N. Ishimatsu, T. Shichijo, Y. Matsushima, H. Maruyama, Y. Matsuura, T. Tsumuraya, T. Shishidou, T. Oguchi, N. Kawamura, M. Mizumaki, T. Matsuoka, and K. Takemura Phys. Rev. B 86 (2012) 104430
Magnetic EXAFS study of Fe-Ni invar alloy under high pressure using nano-polycrystalline diamond anvils K. Matsumoto, H. Maruyama, N. Ishimatsu, N. Kawamura, M. Mizumaki, T. Irifune, and H. Sumiya J. Physics: Conference Series 377 (2012) 012039
Magnetic States in Fe, Co, Ni hydrides under High Pressure Probed by X-ray Magnetic circular dichroism N. Ishimatsu, T. Shichijo, Y. Matsushima, H. Maruyama, N. Kawamura, M. Mizumaki, T. Matsuoka, and K. Takemura J. Physics: Conference Series 377 (2012) 012041
Glitch-free X-ray absorption spectrum under high pressure obtained using nano-polycrystalline diamond anvils N. Ishimatsu, K. Matsumoto, H. Maruyama, N. Kawamura, M. Mizumaki, H. Sumiya, and T. Irifune J. Synchrotron Rad. (2012). 19, 768-772
2011年
Intrinsic Effect of the Electric Field on Ti-O Bonding in Ferroelectric BaTiO3 Probed by Resonant X-ray Emission Spectroscopy Y. Isohama, N. Nakajima, G. Watanabe, M. Mizumaki, N. Kawamura, and H. Maruyama Jpn. J. Appl. Phys. 50 (2011) 09NE04
Instability of Co Spin Moment in ErCo2 Probed by Magnetic Compton Scattering under High Pressure S. Watanabe, N. Ishimatsu, H. Maruyama, H. KObayashi, M. Itou, N. Kawamura, and Y. Sakurai J. Phys. Soc. Jpn. 80 (2011) 093705
Pressure-induced changes in the magnetic and valence state of EuFe2As2 K. Matsubayashi, K. Munakata, M. Isobe, N. Katayama, K. Ohgushi, Y. Ueda, N. Kawamura, M. Mizumaki, N. Ishimatsu, M. Hedo, I. Umehara, and Y. Uwatoko Phys. Rev. B 84 (2011) 024502
Colossal negative thermal expansion in BiNiO3 induced by intermetallic charge transfer M. Azuma, W. Chen, H. Seki, M. Czapski, S. Olga, K. Oka, M. Mizumaki, T. Watanuki, N. Ishimatsu, N. Kawamura, S. Ishiwata, M.G. Tucker, Y. Shimakawa, and J.P. Attfield Nature Communications, 2 (2011) 347.
Paramagnetism with anomalously large magnetic susceptibility in beta(fcc)-cobalt probed by x-ray magnetic circular dichroism up to 170 GPa N. Ishimatsu, N. Kawamura, H. Maruyama, M. Mizumaki, T. Matsuoka, H. Yumoto, H. Ohashi, and M. Suzuki Phys. Rev. B 83, (2011) 180409(R)
Tetragonal-cubic phase transition in BaTiO3 probed by resonant X-ray emission spectroscopy Y. Isohama, N. Nakajima, H. Maruyama, Y. Tezuka, and T. Iwazumi J. Electron Spectroscopy and Related Phenomena 184 (2011) 207
Detailed measurement of Ti 2p resonant X-ray Raman scattering of TiO2 and its polarization dependence measurements Y. Tezuka, N. Nakajima and O. Morimoto J. Electron Spectroscopy and Related Phenomena 184 (2011) 216
Raman Scattering Study of Nano-Particle BaTiO3 M. Aoyama, T. Hasegawa, N. Ogita, N. Nakajima, H. Maruyama, H. Kurokawa, M. Udagawa Chinese J. Phys. 49 (2011) 49
Noncollinear Spin Structure in Fe-Ni Invar Alloy Probed by Magnetic EXAFS at High Pressure K. Matsumoto, H. Maruyama, N. Ishimatsu, N. Kawamura, M. Mizumaki, T. Irifune, and H. Sumiya J. Phys. Soc. Jpn. 80 (2011) 023709
2010年
X-ray Spectroscopic Study on Photoluminescence Properties of Red Phosphor SrTiO3:Pr3+,Al N. Nakajima, M. Deguchi, H. Maruyama, K. Ishiji, and Y. Tezuka Jpn. J. Appl. Phys. 49 (2010) 09ME04
Pressure-Induced Spin-State Transition in BiCoO3 K. Oka, M. Azuma, W. Chen, H. Yusa, A. A. Belik, E. T-Muromachi, M. Mizumaki, N. Ishimatsu, N. Hiraoka, M. Tsujimoto, M. G. Tucker, J. P. Attfield, and Y. Shimakawa J. Am. Chem. Soc. 132 (2010) 9438
Magnetic state in iron hydride under pressure studied by X-ray magnetic circular dichroism at the Fe K-edge N. Ishimatsu, Y. Matsushima, H. Maruyama, T. Tsumuraya, T. Oguchi, N. Kawamura, M. Mizumaki, T. Matsuoka, and K. Takemura Mater. Res. Soc. Symp. Proc. 1262 (2010) W04-02
Antiferromagnetic Phase Transition in Ordered FePt3 Investigated by Angle-Resolved Photoemission Spectroscopy N. Tobita, N. Nakajima, N. Ishimatsu, H. Maruyama, K. Shimada, H. Namatame, and M. Taniguchi J. Phys. Soc. Jpn. 79 (2010) 0247031
Observation of the Fixed Fe-CN-Mn Cluster in Cesium Manganese Hexacyanoferrate K. Ishiji, M. Deguchi, K. Kawakami,N. Nakajima, T. Matsuda, H. Tokoro, S. Ohkoshi, and T. Iwazumi J. Phys. Soc. Jpn. 79, 074801 (2010)
Novel Magnetic Domain Structure in Iron Meteorite Induced by the Presence of L10-FeNi M. Kotsugi, C. Mitsumata, H. Maruyama, T. Wakita, T. Taniuchi, K. Ono, M. Suzuki, N. Kawamura, N. Ishimatsu, M. Oshima, Y. Watanabe, M. Taniguchi Appl. Phys. Express 3 (2010) 013001
Observation of X-ray-induced phase transition phenomenon of cesium manganese hexacyanoferrate K. Ishiji, M. Deguchi, N. Nakajima, T. Matsuda, H. Tokoro, S. Ohkoshi,T. Iwazumi J. Phys; Conference Series 148, 012046 (2009)
Origin of the X-ray magnetic circular dichroism at the L-edges of the rare-earths in RxR1-x’Al2 J. Chaboy, M. A. Laguna-Marco, C. Piquer, R. Boada, N. Plugaru, H. Maruyama and N. Kawamura J. Synchrotron Rad. (2009).16, 405-412
Orbital contribution to perpendicular magnetic anisotropy in Co80Pt20 thin films N. Ishimatsu, Y. Tsutsui, H. Maruyama, N. Nakajima, N. Tobita, M. Sawada, H. Namatame, N. Kawamura, H. Osawa, and M. Suzuki J. Appl. Phys. 106, 033902 (2009)
A UV-induced one-dimensional motion of titanium ions in perovskite titanates N. Nakajima, M. Deguchi, N. Ishimatsu, H. Maruyama, K. Ishiji T. Iwazumi J. Phys; Conference Series 190, 012083 (2009)
Effect of hydrogenation on the electronic state of metallic La hydrides probed by X-ray absorption spectroscopy at the La L-edges N. Ishimatsu, R. Sasada, H. Maruyama, T. Ichikawa, H. Miyaoka, T. Kimura, M. Tsubota, Y. Kojima, T. Tsumuraya, T. Oguchi, N. Kawamura, A. Machida J. Phys: Conference Series 190, 012070 (2009)
Pressure dependence of magnetic states in Laves Phase RCo2 (R=Dy, Ho, and Er) compounds probed by XMCD S. Watanabe, N. Ishimatsu, H. Maruyama, J. Chaboy, M.A. Laguna-Marco, R. Boada, N. Kawamura J. Phys: Conference Series 190, 012021 (2009)
X-ray magnetic circular dichroism at Os L-edge under multiple extreme conditions in SmOs4Sb12 N. Kawamura, S. Tsutsui, M. Mizumaki, N. Ishimatsu, H. Maruyama, H. Sugawara and H. Sato J. Phys: Conference Series 190, 012020 (2009)
Multiple scattering approach to XMCD for Bi substituted Gd iron garnet I.Hojo, S.Nagamatsu, T.Maruyama, H.Maruyama, and T.Fujikawa J. Phys.: Conference Series 190, 012017 (2009)
X-ray Magnetic Spectroscopy at High Pressure – Performance of SPring-8 BL39XU N. Kawamura, N. Ishimatsu, H. Maruyama J. Synchrotron Rad. 16, 730 (2009)
Direct observation of the pressure-induced charge redistribution in BiNiO3 by x-ray absorption spectroscopy M. Mizumaki, N. Ishimatsu, N. Kawamura, M. Azuma, Y. Shimakawa, M. Takano, T. Uozumi Phys. Rev. B 80, 233104 (2009)
2008年
Disentanglement of magnetic contributions in multi-component systems by using X-ray Magnetic Circular Dichroism at a single absorption edge J.Chaboy, M.-A.Laguna-Marco, C.Piquer, R.Boada, H.Maruyama and N.Kawamura; J. Synchrotron Radiation,15 (2008) 440-448.
Luminescence mechanism of (Pr, Al)-doped SrTiO3 fine particles investigated by x-ray absorption spectroscopy M.Deguchi, N.Nakajima, K.Kawakami, N.Ishimatsu, H.Maruyama, C.Moriyoshi, Y.Kuroiwa, S.Nozawa, K.Ishiji, and T.Iwazumi; Phys. Rev. B78 (2008) 073103/1-4.
Observation of X-ray-induced phase transition phenomenon of cesium manganese hexacyanoferrate K.Ishiji, M.Deguchi, N.Nakajima, T.Matsuda, H.Tokoro, S.Ohkoshi, and T.Iwazumi; J. Phys.; Conference Series148 (2009) 012046.
2007年
Ab initio x-ray absorption near-edge structure study of Ti K-edge in rutile J. Chaboy, N. Nakajima and Y. Tezuka; J. Phys.: Condensed Mat.19 (2007) 216214 (9pp).
Study of 4p Electronic States Related to Magnetic Phase Transition in Mn3MC (M=Zn and Ga) by X-ray Magnetic Circular Dichroism N. Kawamura, H. Maruyama, M. Suzuki and T. Ishikawa; J. Phys. Soc. Jpn., 76 (2007) 074716
Stability of Ferromagnetism in Fe, Co, and Ni Metals under High Pressure Studied by the K-Edge XMCD N. Ishimatsu, H. Maruyama, N.Kawamura, M. Suzuki, Y. Ohishi and O. Shimomura; J. Phys. Soc. Jpn., 76 (2007) 064703.
Experimental evidence of pressure-induced suppression of the cobalt magnetic moment in ErCo2 N. Ishimatsu, S. Miyamoto, H. Maruyama, J.Chaboy, M.A.Laguna-Marco and N. Kawamura; Phys. Rev. B 75 (2007) 180402(R).
Ab-initio X-Ray Absorption Study of Mn K-edge XANES Spectra in Mn3MC (M = Sn, Zn and Ga) Compounds J. Chaboy, H. Maruyama and N. Kawamura; Journal of Physics: Condensed Matter 19 (2007) 216214 (9pp).
X-ray magnetic circular dichroism study of the decoupling of the magnetic ordering of the Er and Co sublattices in Er1-xYxCo2 systems J. Chaboy, M. A. Laguna-Marco, H. Maruyama, N. Ishimatsu, Y. Isohama and N. Kawamura; Phys. Rev. B 75 (2007) 144405.
Identifying Transition Metal Contribution to the Rare-Earth L2-Edge XMCD Spectra in R-T Intermetallics; M. A. Laguna-Marco, J. Chaboy, C. Piquer, H. Maruyama, N. Ishimatsu and N. Kawamura; “X-Ray Absorption Fine Structure -XAFS-13”, (ed. B.Hedman, P. Pianetta), AIP 882 (2007) pp.484-486.
Magnetic Circular Dichroism of Resonant X-Ray Emission Spectroscopy Related to Er 2p-4f Electronic Quadrupolar Transition in Er3Fe5O12; N. Kawamura, M. Mizumaki, H. Maruyama and T. Ishikawa; “X-Ray Absorption Fine Structure -XAFS-13”, (ed. B. Hedman, P. Pianetta), AIP 882 (2007) pp.472-474.
Relativistic Multiple Scattering Approach to Heavy Metal L2,3-Edge XMCD; K. Okamoto, S. Nagamatsu, T. Fujikawa and H. Maruyama; “X-Ray Absorption Fine Structure -XAFS-13”, (ed. B.Hedman, P. Pianetta), AIP 882 (2007) pp.147-149.
Valence-Band Photoemission Spectroscopy of a Single-Crystal FePt3 N. Tobita, K. Emi, N. Nakajima, H. Maruyama, Y. Miura, M. Higashiguchi, K.Shimada, H. Namatame and M. Taniguchi; Journal of Magnetism and Magnetic Materials 310 (2007) 1642-644.
Relationship between the magnetic moment of Lu and the magnetic behavior of (YyLu1-y)(Co1-xAlx)2 from x-ray absorption spectroscopy and x-ray magnetic circular dichroism J. Chaboy, M. A. Laguna-Marco, C. Piquer, H. Maruyama, N. Kawamura, N. Ishimatsu, M. Suzuki, and M. Takagaki Phys. Rev. B 75 (2007) 064410
Application of photoelectron emission microscopy (PEEM) to extraterrestrial materials M. Kotsugi, T. Wakita, N. Kawamura, T. Taniuchi, K. Ono, M. Suzuki, M. Oshima, N. Ishimatsu, M. Taniguchi, H. Maruyama; Surf. Sci. 601 (2007) 4764.
Easy-axis rotation in meteoritic iron probed by photoelectron emission microscope (PEEM) M.Kotsugi, F.T. Guo, M. Taniguchi, N.Ishimatsu, H. Maruyama; Surf. Sci. 601 (2007) 4326.
2006年
The Valence state of Yb ion in YbInAu2 Compound at High Pressure determined by x-ray diffraction and x-ray Absorption near edge structure measurements A. Fuse, G. Nakamoto, N. Ishimatsu and M. Kurisu; Journal of Applied Physics 100 (2006) 043712 1-4.
Speciation of sulfate in size-fractionated aerosol particles by sulfur K-edge X-ray absorption near-edge structure (XANES) Y. Takahashi, Y. Kanai, H. Kamioka, A. Ohta, H. Maruyama and H. Shimizu; Environ. Sci. Technol. 40 (2006) 5052-5057.
2005年
Element-selective thermal XMCD study through the magnetic compensation temperature of Ho6Fe23 M. A. Laguna-Marco, J. Chaboy and H. Maruyama; Phys. Rev. B 72 (2005) 094408-9.
Depth Profile of Spin and Orbital Magnetic Moments in Sub-nm Pt Film on Co M. Suzuki, H. Muraoka, Y. Inaba, H. Miyagawa, N. Kawamura, T. Shimatsu, H. Maruyama, N. Ishimatsu, Y. Isohama and Y.Sonobe; Phys. Rev. B 72 (2005) 054430-8.
Revealing Fe magnetism in lanthanides-iron intermetallic compounds by tuning the rare-earth L2,3-edge x-ray absorption edges M. A. Laguna-Marco, J. Chaboy, C. Piquer, H. Maruyama, N. Ishimatsu, N. Kawamura, M.Takagaki and M.Suzuki; Physical Review B 72 (2005) 052412-4.
Magnetic phase transition in Laves phase DyCo2 probed by XRD and XMCD under high pressures N. Ishimatsu, H. Maruyama, N. Kawamura, Y. Ohishi and O. Shimomura; Nucl. Instrum. Methods B 238 (2005) 167-170.
Ga magnetic polarization in Mn3GaC under high pressure probed by Ga K-edge XMCD N. Kawamura, N. Ishimatsu, M. Isshiki, Y. Komatsu and H. Maruyama; Physica Scripta T115 (2005) 591-593.
Surface metallic nature caused by an in-gap state of reduced NiO: a photo emission study N. Nakajima, H. Kato and Y. Sakisaka Journal of Electron Spectroscopy and Related Phenomena, 144-147 (2005) 873-875.
2004年
The Valence state of Yb metal unser high pressure determined by XANES measurement up to 34.6 GPa A. Fuse, G. Nakamoto, M. Kurisu, N. Ishimatsu, H. Tanida; J. Alloys Compd., 375 (2004) 34-37.
Experimental system for X-ray magnetic diffraction under extreme conditions E. Arakawa, M. Ito, N. Ishimatsu, M. Suzuki, N. Kawamura, H. Sakurai, F. Itoh, Y. Honma, A. Ochiai, Y. Akahama, H. Maruyama, K. Namikawa and O. Shimomura; J. Phys. Chem. Sol., 65 (2004) 2089-2092.
Valence-band satellites in Ni: A photoelectron spectroscopic study N. Nakajima, S. Hatta, J. Odagiri, H. Kato and Y. Sakisaka; Phys. Rev. B 70 (2004) 233103 (4 pages).
Photoemission study of the modification of the electronic structure of transition-metal overlayers on TiO2 surfaces: III. Ni on TiO2(001) and Cu on TiO2(110) N. Nakajima, H. Kato, T. Okazaki and Y. Sakisaka; Surface Science 561 (2004) 93-100.
Photoemission study of the modification of the electronic structure of transition-metal overlayers on TiO2 surfaces: II. Cr on TiO2(001) N. Nakajima, H. Kato, T. Okazaki and Y. Sakisaka; Surface Science 561 (2004) 87-92.
Photoemission study of the modification of the electronic structure of transition-metal overlayers on TiO2 surfaces: I. Fe on TiO2(110) N. Nakajima, H. Kato, T. Okazaki and Y. Sakisaka Surface Science 561 (2004) 79-86.
Instantaneous View of Microscopic-scale Polarization Clusters in the Paraelectric BaTiO3 R. Z. Tai, K. Namikawa, A. Sawada, M. Kishimoto, M. Tanaka, P. Lu, K. Nagashima, H. Maruyama and M. Ando; Phys. Rev. Lett. 93 (8) (2004) 087601-4.
Rare-Earth Orbital Contribution to the Fe K-edge X-ray Magnetic Circular Dichroism in Rare-Earth Transition-Metal Intermetallic Compounds J. Chaboy, M. A. Laguna-Marco, M. C. Sanchez, H. Maruyama, N. Kawamura and M. Suzuki; Phys. Rev. B 69 (2004) 134421-8.
XMCD Study of RFe11Ti Intermetallic Compounds M. A. Laguna-Marco, J. Chaboy, M. C. Sanchez, H. Maruyama, N. Kawamura and M. Suzuki; Journal of Magnetism and Magnetic Materials, 272&276 (2004) 2144-2415.
XMCD Study of Magnetic Phase Transition in Mn3ZnC Perovskite H. Maruyama, N. Ishimatsu and N. Kawamura; Physica B 351 (2004) 328-332.
X-Ray Magnetic Circular Dichroism and Structural Model for Co-Doped TiO2 (Anatase) Thin Film N. Shimizu, S. Sasaki, T. Hanashima, K. Yamawaki, H. Udagawa, N. Kawamura, M. Suzuki, H. Maruyama, M. Murakami, Y. Matsumoto and H. Koinuma; J. Phys. Soc. Jpn, 73(4) (2004)800-803.
Temperature Dependence of the Ho L2,3-Edges XMCD Spectra in Ho6Fe23 M. A. Laguna-Marco, J. Chaboy, and H. Maruyama; Physica B 345 (2004) 197-200.
XMCD Studies of Electronic States in Rare-Earth Iron Garnet H. Maruyama and N. Kawamura; Journal of Electron Spectroscopy and Related Phenomena, 136 (2004) 135-141.
Influence of Magnetocrystalline Anisotropy on Rare-Earth L2,3-edge X-Ray Magnetic Circular Dichroism Spectra J. Chaboy, H. Maruyama, N. Kawamura and M.Suzuki; Physical Review B 69 (2004) 014427.
2003年
Pressure-induced phase transitions of lanthanide monoarsenides LaAs and LuAs with a NaCl-type structure I. Shirotani, K. Yamanashi, J. Hayashi, N. Ishimatsu, O. Shimomura and T. Kikegawa; Solid State Communications 127 (2003) 573-576.
Structural phase transition of ScSb and YSb with a NaCl-type structure at high pressures J. Hayashi, I. Shirotani, K. Hirano, N. Ishimatsu, O. Shimomura and T. Kikegawa; Solid State Commuications 125 (2003) 543-546.
X-ray study with synchrotron radiation of cerium and praseodymium monopnictides with the NaCl-type structure at high pressures I. Shirotani, J. Hayashi, K. Yamanashi, K. Hirano, T. Adachi, N. Ishimatsu, O. Shimomura and T. Kikegawa; Physica B, 334 (2003) 167-174.
Angle-resolved photoemission study of the near-surface electronic structure of Cr(001) N. Nakajima, O. Morimoto, H. Kato and Y. Sakisaka Phys. Rev. B 67 (2003) 041402(R) (4pages).
X-ray Magnetic Circular Dichroism Study of Metamagnetic Behaviour in the Heavy-Fermion System CeRu2Si2 T. Honma, N. Kawamura, M. Suzuki, M. Mizumaki, H. Maruyama, N. Ishimatsu, Y. Inada and Y. Ohnuki; J.Phys.: Conden. Mat. 15 (2003) S2171-2174.
Pressure-Induced Demagnetizing Process in Fe4N probed by Fe K-edge XMCD N. Ishimatsu, H. Maruyama, N. Kawamura, M. Suzuki, Y. Ohishi, M. Ito and O. Shimomura; J. Phys. Soc. Jpn. 72 (9) (2003) 2372-2376.
Relationship between Hydriding and Nd Magnetic Moment in Nd2Fe14B J. Chaboy, C. Piquer, N. Plugaru, M. Artigas, H. Maruyama, N. Kawamura and M. Suzuki; J. Appl. Phys. 93 (2003) 475-478.
Magnetization curves of an Fe/Gd multilayer film calculated from Gd magenetization depth profiles determined by resonant x-ray magnetic scattering N. Hosoito, H. Hashizume and N. Ishimatsu; J. Phys.: Conden. Mat., 14 (2002) 5289-5301.
Magnetic structures of an iron-gadolinium multilayer at low temperatures N. Hosoito, H. Hashizume, N. Ishimatsu, IT. Bae, G. Srajer, JC Lang, CK Venkataraman and CS Nelson; Jpn. J. Appl. Phys., Part 1, 41 (2002)1331-1339.
Studies of the pressure dependence of the charge density distribution in cerium phosphide by the maximum-entropy method N. Ishimatsu, Y. Ohishi, M. Takata, E. Nishibori, M. Sakata, J. Hayashi, I. Shirotani, O. Shimomura; J. Phys.: Conden. Matt., 14 (2002) 11143-11146.
Picosecond Snapshot of the Speckles from Ferroelectric BaTiO3 by Means of X-Ray Lasers R. Z. Tai, K. Namikawa, M. Kishimoto, H. Tang, M. Tanaka, K. Sugekawa, N. Hasegawa, T. Kawachi, P. Lu, K. Nagashima, H. Daido, H. Maruyama, A. Sawada, M. Ando and Y. Kato; Phys. Rev. Lett. 89 (25) (2002) 257602, 1-4.
Imaging of electron density distribution of CeP under high pressure by single crystal SR X-ray experiments T. Shobu, Y. Noda, K. Iwasa, A. Hannan, M. Kohgi, N. Ishimatsu and O. Shimomura; J. Phys. Soc. Jpn. 70 (2001) 1162-1163.
Pressure-induced phase transitions in lanthanide monoantimonides with a NaCl-type structure I. Shirotani, J. Hayashi, K. Yamanashi, N. Ishimatsu, O. Shimomura and T. Kikegawa; Phys. Rev. B 64 (2001) 132101-4.
Phase transitions of LnAs (Ln = Pr, Nd, Sm, Gd, Dy and Ho) with NaCl-type structure at high pressures I. Shirotani, K. Yamanashi, J. Hayashi, Y. Tanaka, N. Ishimatsu, O. Shimomura and T. Kikegawa; J. Phys.; Conden. Mat., 13 (2001) 1939-1946.
X-ray Magnetic Circular Dichroism Studies of Fe4N under High-Pressure N. Ishimatsu, Y. Ohishi, M. Suzuki, N. Kawamura, M. Ito, H. Maruyama, S. Nasu, T. Kawakami and O. Shimomura; Nuclear Instruments and Methods in Physics Research A467-8 (2001) 1061-1064.
X-ray magnetic circular dichroism at rare-earth L2,3 edges in R2Fe14B compounds (R=La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) K. Fukui, H. Ogasawara, I. Harada, A. Kotani, H. Maruyama, N. Kawamura, K. Kobayashi, J. Chaboy and A. Marcelli; Phys. Rev. B 64 (2001) 104405,1-7.
Electronic States in Cu2MnX (X=Al, In, and Sn) Heusler Alloy Studied by XMCD and Multiple Scattering Calculations S. Uemura, H. Maruyama, N. Kawamura, H. Yamazaki, S. Nagamatsu and T. Fujikawa; J. Synchrotron Rad., 8 (2001) 452-454.
Mn K-edge XMCD in Mn3MC (M=Zn and Ga) Perovskite S. Uemoto, H. Maruyama, N. Kawamura, S. Uemura, N. Kitamoto, H. Nakao, S. Hara, M. Suzuki, D. Fruchart and H. Yamazaki; J. Synchrotron Rad., 8 (2001) 449-451.
Magnetic Circular Dichroism of 3d5/2→2p3/2 Resonant Inelastic X-Ray Scattering at the Ho LIII-Edge in Ho3Fe5O12 T. Nakamura, N. Kawamura, T. Iwazumi, H. Maruyama, A. Urata, H. Shoji, S. Nanao, S. Kishimoto, R. Katano and Y. Isozumi; J. Synchrotron Rad., 8 (2001) 428-430.
Variation of XMCD Spectrum with Temperature at R L2,3-Edges in R3Fe5O12 (R=Gd and Er) N. Kawamura, M. Suzuki, H. Maruyama and T. Ishikawa; J. Synchrotron Rad., 8 (2001) 425-427.
Multielectron Excitations Probed by Helicity-Modulation XMCD at K-Edge in 3d Transition Metal Compounds N. Kawamura, T. Yamamoto, H. Maruyama, I. Harada, M. Suzuki and T. Ishikawa; J. Synchrotron Rad., 8 (2001) 410-412.
Study of Magnetic Materials Using Helicity-Modulated X-ray Magnetic Circular Dichroism H. Maruyama; J. Synchrotron Rad., 8 (2001) 125-128.