Magnetocaloric effect in Gd(1-y)DyyAl2

被引：12

作者：

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

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

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

Carvalho, A. Magnus G. ^{[2
,3
]}

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

机构：

[1] Univ Estado Rio de Janeiro, Inst Fis, BR-20550013 Rio De Janeiro, Brazil

[2] Univ Fed Sao Paulo, UNIFESP, Inst Ciencia & Tecnol, BR-12231280 Sao Jose Dos Campos, RJ, Brazil

[3] INMETRO, Inst Nacl Metrol Qualidade & Tecnol, BR-25250020 Duque De Caxias, RJ, Brazil

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2014年 / 37卷

基金：

巴西圣保罗研究基金会;

关键词：

Magnetocaloric effect; Composite; Rare-earth; Crystalline anisotropy; MAGNETIC-ANISOTROPY; DYAL2;

D O I：

10.1016/j.ijrefrig.2013.07.012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this work we calculate the magnetic properties and the magnetocaloric effect in Gd-1- yDyyAl2 (y = 0, 0.25, 0.5, 0.75 and 1). The model Hamiltonian includes contributions from the Zeeman effect, the crystalline electrical field anisotropy and the exchange interactions among Gd-Gd, Gd-Dy and Dy-Dy ions. To obtain a composite with Delta S-T as constant as possible in the temperature range from T = 60 K to 170 K, the appropriate concentrations of the five compounds investigated were calculated using the Smaili and Chahine method. The magnetization and Delta S-T dependences on temperature in the composite were simulated and compared with the partial contributions of the single magnetic component materials. Also, the magnetic field dependence on magnetization was investigated in Gd0.25Dy0.75Al2, where the discontinuous spin reorientation transitions were predicted for magnetic fields lower than 2 T, applied along <110> direction. (C) 2013 Elsevier Ltd and IIR. All rights reserved.

引用

页码：297 / 302

页数：6

共 50 条

[41] Magnetotransport and magnetocaloric effect in Gd3In
Mondal, Suman
Dutta, Prabir
Majumdar, Subham
MATERIALS TODAY-PROCEEDINGS, 2022, 55 : 82 - 86
[42] Experimental study of the magnetocaloric effect in Dy1-xErxCo2 solid solutions doped with Gd
Cwik, J.
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 580 : 341 - 347
[43] Magnetocaloric effect of (Gd1−xCex)Co2 compounds in low magnetic fields
Xiang Chen
Yinghong Zhuang
Fei Fang
Jialin Yan
Rare Metals, 2009, 28 : 487 - 490
[44] THERMODYNAMIC INVESTIGATIONS OF ZR(1-Y)CAYO(2-Y-X) SOLID ELECTROLYTES
GRANOVSKAYA, ZV
VASILEVA, IA
ZHURNAL FIZICHESKOI KHIMII, 1985, 59 (02): : 329 - 332
[45] Magnetocaloric effect of (Gd1-xNdx)Co2alloys in low magnetic field
Chen Xiang
Zhuang Yinghong
Yan Jialin
Zhou Kaiwen
Li Kefeng
RARE METALS, 2008, 27 (04) : 350 - 353
[46] Structure, transport properties and the magnetocaloric effect in Gd(Co1-xNix)2 pseudobinary compounds
Li, Lingwei
Nishimura, Katsuhiko
Tamei, Daisuke
Mori, Katsunori
SOLID STATE COMMUNICATIONS, 2008, 145 (9-10) : 427 - 431
[47] Magnetocaloric effect of (Gd1-xNdx)Co2 alloys in low magnetic field
CHEN Xiang a
RareMetals, 2008, (04) : 350 - 353
[48] Magnetocaloric effect of (Gd1-xCex)Co2 compounds in low magnetic fields
CHEN Xianga
Rare Metals, 2009, 28 (05) : 487 - 490
[49] Magnetic and magnetocaloric properties in Gd1-yPryNi2 compounds
Alho, B. P.
Lopes, P. H. O.
Ribeiro, P. O.
Alvarenga, T. S. T.
Nobrega, E. P.
de Sousa, V. S. R.
Carvalho, A. M. G.
Caldas, A.
Tedesco, J. C. G.
Coelho, A. A.
de Oliveira, N. A.
von Ranke, P. J.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2018, 449 : 308 - 312
[50] Thermodynamic properties of aqueous mixed ternaries {y NH4Cl + (1-y) BaCl2} (aq) and {y NH4Cl + (1-y) CaCl2} (aq) at 298.15
El Guedouzi, Mohamed
Azougen, Rachid
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2007, 31 (02): : 201 - 208

← 1 2 3 4 5 →