Magnetic field induced phase transitions in Gd5(Si1.95Ge2.05) single crystal and the anisotropic magnetocaloric effect

被引：34

作者：

Tang, H ^{[1
]}

Pecharsky, AO

Schlagel, DL

Lograsso, TA

Pecharsky, VK

Gschneidner, KA

机构：

[1] Iowa State Univ, Ames Lab, Met & Ceram Sci Program, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 10期

关键词：

D O I：

10.1063/1.1556259

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetization measurements using a Gd-5(Si1.95Ge2.05) single crystal with the magnetic field applied along three crystallographic directions, [001], [010] and [100], were carried out as a function of the applied field (0-56 kOe) at various temperatures (similar to5-320 K). The magnetic field (H)-temperature (T) phase diagrams were constructed for the Gd-5(Si1.95Ge2.05) single crystal with field along the three directions. A small anisotropy was observed. The magnetocaloric effect was calculated from isothermal magnetization data, and the observed anisotropy correlates with the H-T phase diagrams. The results are discussed in connection with the magnetic field induced martensitic-like structural transition observed in Gd-5(Si2Ge2)-type compounds. (C) 2003 American Institute of Physics.

引用

页码：8298 / 8300

页数：3

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