期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 42, 期 -, 页码 106-112出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2019.12.001
关键词
Intermetallic compound; Pressure study; Magnetic properties; Band structure
资金
- Augsburg Center for Innovative Technologies
- Deutsche Forschungsgemeinschaft [TRR 80/F6, 38/theme04-4-1121 -2015/2020, RFBR17-0200112]
The crystal structure and magnetic properties of YCo5 compound have been studied by neutron diffraction, in the pressure range 0 <= p <= 7.2 GPa. The cobalt moments decrease with pressure, parallelly with anisotropic changes of lattice parameters. The experimental data are analyzed together with results from the combined Density Functional and Dynamical Mean-Field Theory. A rather good agreement between the experimentally determined and calculated values of cobalt moments is shown. Our scenario for the behavior of YCo5 under pressure, is the combined action of the Lifshitz transition with a strong local electron-electron interaction. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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