From single- to double-first-order magnetic phase transition in magnetocaloric Mn1-xCrxCoGe compounds

被引：231

作者：

Trung, N. T. ^{[1
]}

Biharie, V. ^{[1
]}

Zhang, L. ^{[1
]}

Caron, L. ^{[1
]}

Buschow, K. H. J. ^{[1
]}

Bruck, E. ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Sci Appl, NL-2629 JB Delft, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 16期

关键词：

ENTROPY CHANGE;

D O I：

10.1063/1.3399774

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Substitution of some Cr for Mn atoms in MnCoGe was employed to control the magnetic and structural transitions in this alloy to coincide, leading to a single first-order magnetostructural transition from the ferromagnetic to the paramagnetic state with a giant magnetocaloric effect observed near room temperature. Further increase in the Cr content in the Mn1-xCrxCoGe alloys can induce another first-order magnetoelastic transition from the antiferromagnetic to the ferromagnetic state occurring at lower temperature. The giant magnetocaloric effect as well as the simultaneous tunability of the two magnetic transitions make these materials promising for future cooling applications. (C) 2010 American Institute of Physics. [doi:10.1063/1.3399774]

引用

页数：3

共 17 条

[1]

BECKMAN O, 1991, HDB MAGNETIC MAT, V6, pCH3

[2] Developments in magnetocaloric refrigeration [J].

Brück, E .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (23) :R381-R391

[3] On the determination of the magnetic entropy change in materials with first-order transitions [J].

Caron, L. ;

Ou, Z. Q. ;

Nguyen, T. T. ;

Thanh, D. T. Cam ;

Tegus, O. ;

Bruck, E. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2009, 321 (21) :3559-3566

[4] Influence of negative lattice expansion and metamagnetic transition on magnetic entropy change in the compound LaFe11.4Si1.6 [J].

Hu, FX ;

Shen, BG ;

Sun, JR ;

Cheng, ZH ;

Rao, GH ;

Zhang, XX .

APPLIED PHYSICS LETTERS, 2001, 78 (23) :3675-3677

[5] MAGNETOVOLUME EFFECT OF MNCO1-XGE (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.2) [J].

KANOMATA, T ;

ISHIGAKI, H ;

SUZUKI, T ;

YOSHIDA, H ;

ABE, S ;

KANEKO, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 140 :131-132

[6] Inverse magnetocaloric effect in ferromagnetic Ni-Mn-Sn alloys [J].

Krenke, T ;

Duman, E ;

Acet, M ;

Wassermann, EF ;

Moya, X ;

Mañosa, L ;

Planes, A .

NATURE MATERIALS, 2005, 4 (06) :450-454

[7] Magnetostructural coupling and magnetocaloric effect in Ni-Mn-In [J].

Li, B. ;

Ren, W. J. ;

Zhang, Q. ;

Lv, X. K. ;

Liu, X. G. ;

Meng, H. ;

Li, J. ;

Li, D. ;

Zhang, Z. D. .

APPLIED PHYSICS LETTERS, 2009, 95 (17)

[8] Structural and magnetic properties of MnFe1-xCoxGe compounds [J].

Lin, Song ;

Tegus, O. ;

Bruck, E. ;

Dagula, W. ;

Gortenmulder, T. J. ;

Buschow, K. H. J. .

IEEE TRANSACTIONS ON MAGNETICS, 2006, 42 (11) :3776-3778

[9] Entropy changes due to the first-order phase transition in the Gd5SixGe4-x system [J].

Liu, G. J. ;

Sun, J. R. ;

Lin, J. ;

Xie, Y. W. ;

Zhao, T. Y. ;

Zhang, H. W. ;

Shen, B. G. .

APPLIED PHYSICS LETTERS, 2006, 88 (21)

[10] Massive magnetic-field-induced structural transformation in Gd5Ge4 and the nature of the giant magnetocaloric effect -: art. no. 197204 [J].

Pecharsky, VK ;

Holm, AP ;

Gschneidner, KA ;

Rink, R .

PHYSICAL REVIEW LETTERS, 2003, 91 (19)

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