In situ synchrotron 57Fe Mössbauer spectroscopy of RFe2 (R=Y,Gd) hydrides synthesized under ultra-high-pressure hydrogen

• Published in: Journal of alloys and compounds Vol. 580; pp. S264 - S267
• Main Authors: Mitsui, T., Masuda, R., Seto, M., Hirao, N., Matsuoka, T., Nakamura, Y., Sakaki, K., Enoki, H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier B.V 01.12.2013; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; High-pressure; High-pressure and shock-wave effects in solids and liquids; Hydrogen absorbing materials; Hyperfine interactions; Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.); Magnetic properties and materials; Magnetically ordered materials: other intrinsic properties; Mechanical and acoustical properties of condensed matter; Metal hydrides; Mössbauer spectroscopy; Phase transitions; Physics; Metal hydrides; Hydrogen absorbing materials; Hyperfine interactions; Phase transitions; High-pressure; Mössbauer spectroscopy; High-pressure effects; Hydrogen storage; Intermetallic compounds; Moessbauer spectroscopy; Isomer shift; Hydrides; Magnetic transitions; High pressure; Quadrupolar splitting; Diamond anvil; Laves phases; Iron additions; Synchrotron radiation

•We report the high pressure Mössbauer studies of C15 Laves RFe2 (R=Y,Gd) hydrides.•Two-step magnetic transition was found in C15 Laves RFe2 under high pressure H2.•Pressure induced magnetic transition of RFe2 hydride was not affected by R atom. In situ synchrotron radiation 57Fe Mössbauer spectrosc...