X-Ray Powder Diffraction Studies on MnFeP0.78Ge0.22 in High Magnetic Fields
X-Ray Powder Diffraction Studies on MnFeP0.78Ge0.22 in High Magnetic Fields
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DOI：
10.1007/s10909-012-0710-8
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发表时间：
2013-03
影响因子：
2
通讯作者：
K. Koyama;K. Watanabe;O. Tegus;E. Brück;K. Buschow;F. D. Boer
中科院分区：
文献类型：
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作者：
K. Koyama;K. Watanabe;O. Tegus;E. Brück;K. Buschow;F. D. Boer
为了研究磁场对mnfep0.78 ge0.22结构性能的影响，对mnfep0.78 ge0.22进行了高场x射线粉末衍射和磁化测量。在285 K居里温度附近，观察到场致各向异性晶格变形，并伴有顺磁性向铁磁性的超磁性转变。在280k的变形中，晶格参数膨胀了1.2%，而参数收缩了2.7%。
High field X-ray powder diffraction and magnetization measurements were carried out for MnFeP0.78Ge0.22in order to investigate the magnetic field effect on the structural property. A field-induced anisotropic lattice deformation was observed, accompanied by the metamagnetic transition from the paramagnetic to the ferromagnetic states in the vicinity of the Curie temperature of 285 K. In this deformation at 280 K, the lattice parameteraexpands by 1.2 % whereas the parameterccontracts by 2.7 %.