Magnetic and magnetocaloric properties of Ho6Co2Ga-type Dy6Co2.5Sn0.5 compound

被引：7

作者：

Morozkin, A. V. ^{[1
]}

Nirmala, R. ^{[2
]}

Malik, S. K. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[2] Indian Inst Technol, Madras 600036, Tamil Nadu, India

[3] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, BR-59082970 Natal, RN, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2015年 / 378卷

关键词：

Rare earth intermetallics; Magnetic properties; Magnetocaloric effect; CRYSTAL-STRUCTURE; ER; INTERMETALLICS; GD; HO; TM; TB; DY;

D O I：

10.1016/j.jmmm.2014.11.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

DC magnetization studies on Dy6Co2.5Sn0.5 compound (orthorhombic, Ho6Co2Ga-type, space group Immm, No. 71) have been carried out in the temperature range of 2-300 K and in magnetic fields up to 140 kOe. A field induced metamagnetic transition is observed below its Neel point of 42 K (at 2 K the critical field H-c is 37 kOe). Magnetization-field isotherms have been measured for this compound near magnetic transition temperatures from which isothermal magnetic entropy change, Delta S-m, has been computed. The maximum Delta S-m values of -5.2 J/kg K (for a field change of 80 kOe) and +6.5 J/kg K (for a field change of 50 kOe) are observed at 52 K and 13 K, respectively. (C) 2014 Elsevier B.V. All rights reserved

引用

页码：174 / 177

页数：4

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