Magnetic properties and magnetocaloric effect of the Cr-based spinel sulfides Co1-xCuxCr2S4

被引：6

作者：

Zheng, Xiao-Chao ^{[1
,2
]}

Li, Xi-Yang ^{[2
]}

He, Lun-Hua ^{[2
,3
]}

Zhang, Shao-Ying ^{[2
,3
]}

Tang, Ming-Hua ^{[4
]}

Wang, Fang-Wei ^{[2
,3
]}

机构：

[1] Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Dongguan Branch, Dongguan 523803, Peoples R China

[4] Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Key Film Mat & Applicat Equipments Hunan, Xiangtan 411105, Peoples R China

来源：

CHINESE PHYSICS B | 2017年 / 26卷 / 03期

基金：

中国国家自然科学基金;

关键词：

chalcospinels; magnetocaloric effect; magnetism; crystal structure; CHALCOGENIDE SPINELS; RECENT PROGRESS; TEMPERATURE; CUCR2S4;

D O I：

10.1088/1674-1056/26/3/037502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Crystallographic structure, magnetic properties, and magnetic entropy change of the Cr-based spinel sulfides Co1-xCuxCr2S4 (x = 0-0.8) have been investigated. All these compounds crystallize into the cubic spinel structure, the Cu substitution shrinks linearly the lattice constant at a ratio of 0.0223 angstrom per Cu atom in the unit cell, and enhances linearly the Curie temperature and the spontaneous magnetization at the rates of 18 K and 0.33 mu(B)/f.u. per Cu atom in the unit cell, respectively. All these compounds show a typical behavior of second order magnetic transition, and a room temperature magnetic entropy change of 2.57 J/kg.K is achieved for Co0.4Cu0.6Cr2S4.

引用

页数：5

共 26 条

[1] APPROXIMATE EQUATION OF STATE FOR NICKEL NEAR ITS CRITICAL TEMPERATURE
ARROTT, A
NOAKES, JE
[J]. PHYSICAL REVIEW LETTERS, 1967, 19 (14) : 786 - &
[2] EXCHANGE INTERACTIONS IN FERROMAGNETIC CHROMIUM CHALCOGENIDE SPINELS
BALTZER, PK
WOJTOWICZ, PJ
ROBBINS, M
LOPATIN, E
[J]. PHYSICAL REVIEW, 1966, 151 (02): : 367 - +
[3] Second-order magnetic critical points at finite magnetic fields: Revisiting Arrott plots
Bustingorry, S.
Pomiro, F.
Aurelio, G.
Curiale, J.
[J]. PHYSICAL REVIEW B, 2016, 93 (22)
[4] VEGARD LAW
DENTON, AR
ASHCROFT, NW
[J]. PHYSICAL REVIEW A, 1991, 43 (06): : 3161 - 3164
[5] Ferromagnetism and the metal-insulator transition in the thiospinel Cu(Ir1-xCrx)2S4 -: art. no. 115106
Endoh, R
Awaka, J
Nagata, S
[J]. PHYSICAL REVIEW B, 2003, 68 (11)
[6] Recent developments in magnetocaloric materials
Gschneidner, KA
Pecharsky, VK
Tsokol, AO
[J]. REPORTS ON PROGRESS IN PHYSICS, 2005, 68 (06) : 1479 - 1539
[7] Large magnetic entropy change in perovskite-type manganese oxides
Guo, ZB
Du, YW
Zhu, JS
Huang, H
Ding, WP
Feng, D
[J]. PHYSICAL REVIEW LETTERS, 1997, 78 (06) : 1142 - 1145
[8] MAGNETIC REFRIGERATION IN THE TEMPERATURE-RANGE FROM 10 K TO ROOM-TEMPERATURE - THE FERROMAGNETIC REFRIGERANTS
HASHIMOTO, T
NUMASAWA, T
SHINO, M
OKADA, T
[J]. CRYOGENICS, 1981, 21 (11) : 647 - 653
[9] Relaxor ferroelectricity and colossal magnetocapacitive coupling in ferromagnetic CdCr2S4
Hemberger, J
Lunkenheimer, P
Fichtl, R
von Nidda, HAK
Tsurkan, V
Loidl, A
[J]. NATURE, 2005, 434 (7031) : 364 - 367
[10] Metal-nonmetal transition in Ge doped spinel-type CuCr2S4
Kamihara, Y.
Matoba, M.
Kyomen, T.
Itoh, M.
[J]. PHYSICA B-CONDENSED MATTER, 2006, 378-80 : 1120 - 1121

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