Near room temperature giant magnetocaloric effect and giant negative magnetoresistance in Co, Ga substituted Ni-Mn-In Heusler alloy

被引：64

作者：

Paramanik, Tapas ^{[1
]}

Das, I. ^{[1
]}

机构：

[1] Saha Inst Nucl Phys, CMP Div, Kolkata 700064, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 654卷

关键词：

Heusler alloy; Arc melting; Martensitic transition; Room temperature inverse magnetocaloric effect; Magnetoresistance; X-ray diffraction; PHASE;

D O I：

10.1016/j.jallcom.2015.09.096

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：

Structural, magnetic, magnetotransport, and magnetocaloric effect of Heusler alloy Ni48.4Co1.9Mn34.2In13.8Ga1.7 have been studied. X-ray diffraction study at different temperatures and magnetothermal measurements performed at different applied magnetic fields reveal a transition from ferromagnetic state to a low magnetization state around 300 K, while the temperature is being decreased, is related to the austenite-martensitic structural transition. Near room temperature giant inverse magnetocaloric entropy change 18 J/kg-K and giant negative magnetoresistance (-66%) for 70 kOe magnetic field change have been observed around the first order magnetostructural transition. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：399 / 403

页数：5

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