学术探索
学术期刊
新闻热点
数据分析
智能评审

The influence of crystalline electric field on the magnetocaloric effect in the series RAl2 (R = Pr, Nd, Tb, Dy, Ho, Er, and Tm)

被引：46
作者：
von Ranke, PJ
de Oliveira, NA
Costa, MVT
Nobrega, EP
Caldas, A
de Oliveira, IG
机构：
[1] Univ Estado Rio De Janeiro, Inst Fis, BR-20550013 Rio De Janeiro, Brazil
[2] Univ Gama Filho, BR-20740280 Piedade, RJ, Brazil
[3] Univ Iguacu, BR-26260100 Nova Iguacu, RJ, Brazil
[4] Univ Grande Rio, Duque Caxias, RJ, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷 / PART I期
关键词：
magnetocaloric effect; crystal field; magnetic entropy;
D O I：
10.1016/S0304-8853(00)01162-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using a theoretical model. described by a Hamiltonian which includes the crystalline electrical field and exchange interaction. the magnetocaloric potential for the series RAl2 (R = Pr, Nd, Tb, Dy, Ho, Er, and Tm) is determined. The existence of an anomalous peak was predicted in magnetic entropy change, with applied magnetic field, for Er compound. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：970 / 972
页数：3
相关论文
共 8 条
[1]   The influence of the quadrupolar interaction in the magnetocaloric effect [J].
de Oliveira, IG ;
Caldas, A ;
Nobrega, EP ;
de Oliveira, NA ;
von Ranke, PJ .
SOLID STATE COMMUNICATIONS, 2000, 114 (09) :487-491
[2]   RAISING OF ANGULAR MOMENTUM DEGENERACY OF F-ELECTRON TERMS BY CUBIC CRYSTAL FIELDS [J].
LEA, KR ;
LEASK, MJM ;
WOLF, WP .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1962, 23 (OCT) :1381-&
[3]   Giant magnetocaloric effect in Gd-5(Si2Ge2) [J].
Pecharsky, VK ;
Gschneidner, KA .
PHYSICAL REVIEW LETTERS, 1997, 78 (23) :4494-4497
[4]   MAGNETIC-PROPERTIES OF (RARE EARTH)AL2 INTERMETALLIC COMPOUNDS [J].
PURWINS, HG ;
LESON, A .
ADVANCES IN PHYSICS, 1990, 39 (04) :309-403
[5]   MATRIX ELEMENTS AND OPERATOR EQUIVALENTS CONNECTED WITH THE MAGNETIC PROPERTIES OF RARE EARTH IONS [J].
STEVENS, KWH .
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1952, 65 (387) :209-215
[6]   Anomalous behavior of the magnetic entropy in PrNi5 [J].
von Ranke, PJ ;
Pecharsky, VK ;
Gschneidner, KA ;
Korte, BJ .
PHYSICAL REVIEW B, 1998, 58 (21) :14436-14441
[7]   Influence of the crystalline electrical field on the magnetocaloric effect of DyAl2, ErAl2, and DyNi2 [J].
von Ranke, PJ ;
Pecharsky, VK ;
Gschneidner, KA .
PHYSICAL REVIEW B, 1998, 58 (18) :12110-12116
[8]   Anomaly in the magnetocaloric effect in the intermetallic compound DYAl2 [J].
von Ranke, PJ ;
de Oliveira, IG ;
Guimaraes, AP ;
da Silva, XA .
PHYSICAL REVIEW B, 2000, 61 (01) :447-450
1