MAGNETIC AND THERMOMAGNETIC PROPERTIES OF MATERIALS BASED ON R(Co1-xFex)2 LAVES PHASES WITH HEAVY RARE-EARTH METALS

被引：8

作者：

Anikin, M. S. ^{[1
]}

Tarasov, E. N. ^{[1
]}

Kudrevatykh, N. V. ^{[1
]}

Inishev, A. A. ^{[1
,2
]}

Zinin, A. V. ^{[1
]}

机构：

[1] Ural Fed Univ, Ekaterinburg, Russia

[2] Inst Met Phys, Ekaterinburg, Russia

来源：

METAL SCIENCE AND HEAT TREATMENT | 2018年 / 60卷 / 7-8期

关键词：

magnetocaloric effect; Laves phases; heat capacity; susceptibility; variation of the magnetic contribution into entropy; MAGNETORESISTANCE; BEHAVIOR;

D O I：

10.1007/s11041-018-0312-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The crystal structure, the temperature and field dependences of the magnetization M and of the magnetic contribution into the entropy Delta S-m, the temperature dependences of the high-field susceptibility Chi and the heat capacity C-p of specimens of polycrystal R(Co1-xFex)(2) compounds, where R is Gd, Dy, Ho or Er, are studied. The width of the Delta Sm peak at half-height of its maximum (Delta T-FWHM) is estimated. The dependences of Delta T-FWHM and of the temperature behavior of Delta S-m of the specimens on the magnetic field, on the iron content (x) and on the atomic number of the element R are determined. The causes of the broadening of the Delta S-m (T) peak upon substitution of cobalt with iron in the R(Co1-xFex)(2) compounds are considered.

引用

页码：522 / 527

页数：6

共 21 条

[1]

ANDREYEV AV, 1985, FIZ MET METALLOVED+, V59, P481

[2] FEATURES OF MAGNETOCALORIC EFFECT IN RARE-EARTH BASED R(Co-Fe)2 LAVES PHASES, WITH R = Ho, Er [J].