Magnetocaloric effect in Gd2PdSi3

被引：57

作者：

Sampathkumaran, EV

Das, I

Rawat, R

Majumdar, S

机构：

[1] Tata Inst Fundamental Res, Colaba 400005, Mumbai, India

[2] Interuniv Consortium DAE Facil, Indore 452017, Madhya Pradesh, India

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 03期

关键词：

D O I：

10.1063/1.126995

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of the application of a magnetic field (H) on the temperature (T) dependence of heat capacity and isothermal magnetization has been investigated in Gd2PdSi3, a compound ordering antiferromagnetically below (T-N=)21 K in zero H. Among other findings, the one to be emphasized is the observation of significant magnetocaloric effect (MCE) over about a 30 K range with a peak in the vicinity of T-N. This finding suggests that this material could be useful for magnetic refrigeration below 50 K. The results also establish that either of the two experimental methods-heat capacity or magnetization-can be applied to identify materials with large MCE. (C) 2000 American Institute of Physics. [S0003-6951(00)00229-1].

引用

页码：418 / 420

页数：3

共 13 条

[1] THERMODYNAMICAL PROPERTIES OF INCOMMENSURATE MAGNETIC SYSTEMS [J].

BLANCO, JA ;

GIGNOUX, D ;

MORIN, P ;

SCHMITT, D .

EUROPHYSICS LETTERS, 1991, 15 (06) :671-676

[2] SPECIFIC-HEAT IN SOME GADOLINIUM COMPOUNDS .2. THEORETICAL-MODEL [J].

BLANCO, JA ;

GIGNOUX, D ;

SCHMITT, D .

PHYSICAL REVIEW B, 1991, 43 (16) :13145-13151

[3] SPECIFIC-HEAT IN SOME GADOLINIUM COMPOUNDS .1. EXPERIMENTAL [J].

BOUVIER, M ;

LETHUILLIER, P ;

SCHMITT, D .

PHYSICAL REVIEW B, 1991, 43 (16) :13137-13144

[4]

MAJUMDAR S, 1999, J PHYS CONDENS MATT, V28, pL337

[5] Complex magnetism in a new alloy, Eu2PdSi3, with two crystallographically inequivalent sites [J].

Mallik, R ;

Sampathkumaran, EV ;

Strecker, M ;

Wortmann, G ;

Paulose, PL ;

Ueda, Y .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1998, 185 (02) :L135-L143

[6] Magnetic anomalies in Gd2PdSi3 [J].

Mallik, R ;

Sampathkumaran, EV ;

Paulose, PL ;

Sugawara, H ;

Sato, H .

PRAMANA-JOURNAL OF PHYSICS, 1998, 51 (3-4) :505-509

[7] Observation of a minimum in the temperature-dependent electrical resistance above the magnetic-ordering temperature in Gd2PdSi3 [J].

Mallik, R ;

Sampathkumaran, EV ;

Strecker, M ;

Wortmann, G .

EUROPHYSICS LETTERS, 1998, 41 (03) :315-320

[8]

Pecharsky V.K., 1996, ADV CRYOGEN ENG, V42A, P423

[9] Magnetocaloric effect and magnetic refrigeration [J].

Pecharsky, VK ;

Gschneidner, KA .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :44-56

[10] Giant magnetocaloric effect in Gd-5(Si2Ge2) [J].

Pecharsky, VK ;

Gschneidner, KA .

PHYSICAL REVIEW LETTERS, 1997, 78 (23) :4494-4497

← 1 2 →