Investigation on the magnetocaloric effect in TbN compound

被引：2

作者：

von Ranke, P. J. ^{[1
]}

Alvarenga, T. S. T. ^{[1
]}

Nobrega, E. P. ^{[1
]}

Alho, B. P. ^{[1
]}

Ribeiro, P. O. ^{[1
]}

Carvalho, A. Magnus G. ^{[2
]}

de Sousa, V. S. R. ^{[1
]}

Caldas, A. ^{[1
]}

de Oliveira, N. A. ^{[1
]}

机构：

[1] Univ Estado Rio de Janeiro UERJ, Inst Fis, BR-20550013 Maracana, RJ, Brazil

[2] Inst Nacl Metrol Normalizacao & Qualidade Ind INM, Div Metrol Mat DIMAT, BR-25250020 Duque De Caxias, RJ, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2013年 / 341卷

关键词：

Crystalline electrical field; Rare earth compound; Spin reorientation transition;

D O I：

10.1016/j.jmmm.2013.04.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One of the biggest challenges in materials science is to understand the microscopic mechanisms responsible in storage and release material entropy. TbN compound, which presents non-degeneracy in ground state, was studied and the calculated magnetocaloric effect is in good agreement with the recent experimental data. Also inverse magnetocaloric effect and spin reorientation transition were predicted in TbN. The theoretical investigations were carried out using a Hamiltonian, which includes the crystalline electrical field, Zeeman and exchange interactions. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：138 / 141

页数：4

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