Giant magneto-caloric effect near room temperature in Ni-Mn-Sn-Ga alloys

被引:29
作者
Chatterjee, S. [1 ,2 ]
Giri, S. [1 ,2 ]
De, S. K. [3 ]
Majumdar, S. [1 ,2 ]
机构
[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India
[2] Indian Assoc Cultivat Sci, Ctr Adv Mat, Kolkata 700032, India
[3] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India
关键词
Ferromagnetic shape memory alloys; Martensitic transition; Magneto-caloric effect; PHASE;
D O I
10.1016/j.jallcom.2010.05.026
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
We report the observation of giant magneto-caloric effect (MCE) in ferromagnetic shape memory alloys (FSMAs) of nominal compositions Ni2Mn1.36Sn0.64-xGax (x = 0.24, 0.28 and 0.32). Irrespective of the Ga doping, all the samples undergo long range magnetic ordering below around 330 K. However, the martensitic transition temperature (T-MS) of the samples varies strongly with Ga concentration. Clear signature of field-induced transition around T-MS is visible for all the samples. The observed MCE (Delta S = 13.6J/(kg K) for field changing from 0 to 50 kOe) is found to be highest for x = 0.28 with peak near 249K, while x = 0.32 shows Delta S = 12.8J/(kg K) at 274K. This series of Ga-doped alloys are found to be interesting materials with high value of Delta S over a varied range of temperature. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:273 / 276
页数:4
相关论文
共 24 条
[1]   Tailoring magnetic and magnetocaloric properties of martensitic transitions in ferromagnetic Heusler alloys [J].
Aksoy, Seda ;
Krenke, Thorsten ;
Acet, Mehmet ;
Wassermann, Eberhard F. ;
Moya, Xavier ;
Manosa, Lluis ;
Planes, Antoni .
APPLIED PHYSICS LETTERS, 2007, 91 (24)
[2]   Monte Carlo study of the influence of antiferromagnetic exchange interactions on the phase transitions of ferromagnetic Ni-Mn-X alloys (X=In, Sn, Sb) [J].
Buchelnikov, V. D. ;
Entel, P. ;
Taskaev, S. V. ;
Sokolovskiy, V. V. ;
Hucht, A. ;
Ogura, M. ;
Akai, H. ;
Gruner, M. E. ;
Nayak, S. K. .
PHYSICAL REVIEW B, 2008, 78 (18)
[3]   Reentrant-spin-glass state in Ni2Mn1.36Sn0.64 shape-memory alloy [J].
Chatterjee, S. ;
Giri, S. ;
De, S. K. ;
Majumdar, S. .
PHYSICAL REVIEW B, 2009, 79 (09)
[4]   Thermomagnetic irreversibility in Ni2Mn1.36Sn0.64 shape-memory alloy [J].
Chatterjee, S. ;
Giri, S. ;
Majumdar, S. ;
De, S. K. .
PHYSICAL REVIEW B, 2008, 77 (22)
[5]   Compositional instability of β-phase in Ni-Mn-Ga alloys [J].
Chernenko, VA .
SCRIPTA MATERIALIA, 1999, 40 (05) :523-527
[6]   Phase diagrams in the Ni-Mn-Ga system under compression [J].
Chernenko, VA ;
Kokorin, VV ;
Babii, OM ;
Zasimchuk, IK .
INTERMETALLICS, 1998, 6 (01) :29-34
[7]   Reverse magnetostructural transformation in Co-doped NiMnGa multifunctional alloys [J].
Fabbrici, S. ;
Albertini, F. ;
Paoluzi, A. ;
Bolzoni, F. ;
Cabassi, R. ;
Solzi, M. ;
Righi, L. ;
Calestani, G. .
APPLIED PHYSICS LETTERS, 2009, 95 (02)
[8]   Recent developments in magnetocaloric materials [J].
Gschneidner, KA ;
Pecharsky, VK ;
Tsokol, AO .
REPORTS ON PROGRESS IN PHYSICS, 2005, 68 (06) :1479-1539
[9]   Metamagnetic shape memory effect in a Heusler-type Ni43Co7Mn39Sn11 polycrystalline alloy [J].
Kainuma, R. ;
Imano, Y. ;
Ito, W. ;
Morito, H. ;
Sutou, Y. ;
Oikawa, K. ;
Fujita, A. ;
Ishida, K. ;
Okamoto, S. ;
Kitakami, O. .
APPLIED PHYSICS LETTERS, 2006, 88 (19)
[10]   Magnetic-field-induced shape recovery by reverse phase transformation [J].
Kainuma, R ;
Imano, Y ;
Ito, W ;
Sutou, Y ;
Morito, H ;
Okamoto, S ;
Kitakami, O ;
Oikawa, K ;
Fujita, A ;
Kanomata, T ;
Ishida, K .
NATURE, 2006, 439 (7079) :957-960