Magnetic properties and magnetocaloric effect in ternary REAgAl (RE = Er and Ho) intermetallic compounds

被引：64

作者：

Zhang, Yikun ^{[1
,2
]}

Yang, Baijun ^{[3
]}

Wilde, Gerhard ^{[2
]}

机构：

[1] Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China

[2] Univ Munster, Inst Mat Phys, D-48149 Munster, Germany

[3] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 619卷

关键词：

REAgAl (RE = Er and Ho) compounds; Magnetocaloric effect; Magnetic properties; Magnetic phase transition; 1ST-ORDER TRANSITION; RAGAL R; STATE; TEMPERATURE; DY;

D O I：

10.1016/j.jallcom.2014.08.235

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Magnetism and magnetocaloric effect in REAgAl (RE = Er and Ho) intermetallic compounds have been studied. Both compounds undergo a second order magnetic phase transition from paramagnetic to ferromagnetic state. A large reversible magnetocaloric effect was observed around its own Curie temperatures T-C similar to 14 and 18 K for ErAgAl and HoAgAl, respectively. For a field change of 0-7 T, the maximum magnetic entropy change reaches 13.7 and 13.8 J/kg K for RE = Er and Ho, respectively. The corresponding relative cooling powers are evaluated to be 398 and 525 J/kg. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：12 / 15

页数：4

共 29 条

[1] ON A GENERALISED APPROACH TO 1ST AND 2ND ORDER MAGNETIC TRANSITIONS [J].

BANERJEE, SK .

PHYSICS LETTERS, 1964, 12 (01) :16-17

[2] Table-like magnetocaloric effect and enhanced refrigerant capacity in Eu8Ga16Ge30-EuO composite materials [J].

Chaturvedi, Anurag ;

Stefanoski, Stevce ;

Phan, Manh-Huong ;

Nolas, George S. ;

Srikanth, Hariharan .

APPLIED PHYSICS LETTERS, 2011, 99 (16)

[3] Magnetic properties and magnetocaloric effect of the HoAgGa compound [J].

da Silva, L. M. ;

dos Santos, A. O. ;

Coelho, A. A. ;

Cardoso, L. P. .

APPLIED PHYSICS LETTERS, 2013, 103 (16)

[4] Theoretical aspects of the magnetocaloric effect [J].

de Oliveira, N. A. ;

von Ranke, P. J. .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2010, 489 (4-5) :89-159

[5] The Magnetocaloric Effect and Magnetic Refrigeration Near Room Temperature: Materials and Models [J].

Franco, V. ;

Blazquez, J. S. ;

Ingale, B. ;

Conde, A. .

ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 42, 2012, 42 :305-342

[6] Recent developments in magnetocaloric materials [J].

Gschneidner, KA ;

Pecharsky, VK ;

Tsokol, AO .

REPORTS ON PROGRESS IN PHYSICS, 2005, 68 (06) :1479-1539

[7] Taming the First-Order Transition in Giant Magnetocaloric Materials [J].

Guillou, Francois ;

Porcari, Giacomo ;

Yibole, Hargen ;

van Dijk, Niels ;

Bruck, Ekkes .

ADVANCED MATERIALS, 2014, 26 (17) :2671-2675

[8] Large field-induced magnetocaloric effect and magnetoresistance in ErNiSi [J].

Gupta, Sachin ;

Rawat, R. ;

Suresh, K. G. .

APPLIED PHYSICS LETTERS, 2014, 105 (01)

[9] Magnetic state in RAgAl (R = Dy, Ho, Er) [J].

Heimann, Jan ;

Dunikowski, Dawid .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 423 (1-2) :43-46

[10] VOLUME DEPENDENCE OF THE 1ST-ORDER TRANSITION-TEMPERATURE FOR RCO2 COMPOUNDS [J].

INOUE, J ;

SHIMIZU, M .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1982, 12 (08) :1811-1819

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