Investigation of the pressure and temperature dependence of the intrinsic magnetic properties of YCo.sub.4./sub.Ge

0358983 - FZÚ 2012 RIV NL eng J - Journal Article
Colin, C.V. - Isnard, O. - Arnold, Zdeněk - Kamarád, Jiří
Investigation of the pressure and temperature dependence of the intrinsic magnetic properties of YCo₄Ge.
Journal of Magnetism and Magnetic Materials. Roč. 323, č. 6 (2011), s. 874-880. ISSN 0304-8853. E-ISSN 1873-4766
Institutional research plan: CEZ:AV0Z10100521
Keywords : magnetic anisotropy * pressure effect * intermetallic compounds
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.780, year: 2011
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The YCo4Ge intrinsic magnetic properties;such as the saturation magnetization and themagnetocrystal-line anisotropy parameters;are determined at 5,100,200 and 300K from a fit of the isothermal magnetization curves measured in applied field up to 10T.Ge for Co substitution induces a reduction of the first order anisotropy parameter as well as of the uniaxial anisotropy field.At 4K an anisotropy field of 5.8T is obtained,where as a value of that is observed at room temperature.The magnetocrystalline anisotropy found for YCo4Ge is significantly reduced upon heating from 4 to 300K.The investigation of the magnetic properties of YCo4Ge in both the ordered and the paramagnetic phases shows that this YCo4Ge compound exhibits a typical itinerant ferromagnetic behavior.The effect of applied pressure on the isothermal magnetization has been investigated showing that the volume has an important influence on the magnetization of YCo4Ge.
Permanent Link: http://hdl.handle.net/11104/0196870