Structure and magnetic properties of YCo5 compound at high pressures

被引：6

作者：

Burzo, E. ^{[1
,2
]}

Vlaic, P. ^{[3
]}

Kozlenko, D. P. ^{[4
]}

Golosova, N. O. ^{[4
]}

Kichanov, S. E. ^{[4
]}

Savenko, B. N. ^{[4
]}

Ostlin, A. ^{[5
,6
]}

Chioncel, L. ^{[5
,6
]}

机构：

[1] Babes Bolyai Univ, Fac Phys, Cluj Napoca 40084, Romania

[2] Romanian Acad Sci, Cluj Napoca Branch, Cluj Napoca 400015, Romania

[3] Univ Med & Pharm Iuliu Hatieganu, Dept Phys & Biophys, Cluj Napoca 141980, Romania

[4] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Russia

[5] Univ Augsburg, Inst Phys, Ctr Elect Correlat & Magnetism, Theoret Phys 3, D-86135 Augsburg, Germany

[6] Augsburg Ctr Innovat Technol ACIT, D-86135 Augsburg, Germany

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2020年 / 42卷

关键词：

Intermetallic compound; Pressure study; Magnetic properties; Band structure; MAGNETOCRYSTALLINE ANISOTROPY ENERGY; ELECTRONIC-STRUCTURE CALCULATIONS; RARE-EARTH; INTERMETALLIC COMPOUNDS; NEUTRON-DIFFRACTION; POLARIZED-NEUTRON; COBALT; MOMENTS; METAL;

D O I：

10.1016/j.jmst.2019.12.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：106 / 112

页数：7

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