Effect of structural disorder on the magnetocaloric properties of Ni-Mn-Sn alloy

被引：43

作者：

Ghosh, Arup ^{[1
]}

Mandal, Kalyan ^{[1
]}

机构：

[1] SN Bose Natl Ctr Basic Sci, Magnetism Lab, Dept Condensed Matter Phys & Mat Sci, Kolkata 700098, India

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 03期

关键词：

MAGNETIC ENTROPY CHANGE;

D O I：

10.1063/1.4862431

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic and magnetocaloric properties of Ni50Mn36.5Sn13.5 Heusler alloy has been studied by varying the duration of annealing (0, 6, 12, 18, and 24 h) at 1173 K. The atomic ordering increases, martensitic transition (MT) becomes sharper and exchange bias field increases with increasing annealing time. The sample annealed for 24 h has shown a large magnetic entropy change (Delta S-M) near its MT. But, the net refrigerant capacity at the MT of 12 h annealed sample is larger than the former one. We have discussed these results in the context of structural disorder and the ferro/antiferro correlations present in these alloy systems. (C) 2014 AIP Publishing LLC.

引用

收藏

页数：4

相关论文

共 30 条

[1] Magnetic correlations in martensitic Ni-Mn-based Heusler shape-memory alloys: Neutron polarization analysis [J].

Aksoy, S. ;

Acet, M. ;

Deen, P. P. ;

Manosa, L. ;

Planes, A. .

PHYSICAL REVIEW B, 2009, 79 (21)

[2] Structural properties of magnetic Heusler alloys [J].

Ayuela, A ;

Enkovaara, J ;

Ullakko, K ;

Nieminen, RM .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (08) :2017-2026

[3] Hysteresis and magnetocaloric effect at the magnetostructural phase transition of Ni-Mn-Ga and Ni-Mn-Co-Sn Heusler alloys [J].

Basso, Vittorio ;

Sasso, Carlo P. ;

Skokov, Konstantin P. ;

Gutfleisch, Oliver ;

Khovaylo, Vladimir V. .

PHYSICAL REVIEW B, 2012, 85 (01)

[4] Temperature dependence of thermoelectric power and thermal conductivity in ferromagnetic shape memory alloy Ni50Mn34In16 in magnetic fields [J].

Chandra, L. S. Sharath ;

Chattopadhyay, M. K. ;

Sharma, V. K. ;

Roy, S. B. ;

Pandey, Sudhir K. .

PHYSICAL REVIEW B, 2010, 81 (19)

[5] Large magnetic entropy change and magnetoresistance associated with a martensitic transition of Mn-rich Mn50.5-xNi41Sn8.5+x alloys [J].

Ghosh, Arup ;

Mandal, Kalyan .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2013, 46 (43)

[6] Large magnetoresistance associated with large inverse magnetocaloric effect in Ni-Co-Mn-Sn alloys [J].

Ghosh, Arup ;

Mandal, Kalyan .

EUROPEAN PHYSICAL JOURNAL B, 2013, 86 (09)

[7] Large inverse magnetocaloric effect in Ni48.5-xCoxMn37Sn14.5 (x=0, 1 and 2) with negligible hysteresis [J].

Ghosh, Arup ;

Mandal, Kalyan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 579 :295-299

[8] Exchange bias effect in alloys and compounds [J].

Giri, S. ;

Patra, M. ;

Majumdar, S. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (07)

[9] The phase transitions, magnetocaloric effect, and magnetoresistance in Co doped Ni-Mn-Sb ferromagnetic shape memory alloys [J].

Han, Z. D. ;

Wang, D. H. ;

Zhang, C. L. ;

Xuan, H. C. ;

Zhang, J. R. ;

Gu, B. X. ;

Du, Y. W. .

JOURNAL OF APPLIED PHYSICS, 2008, 104 (05)

[10] CRYSTALLOGRAPHIC AND MAGNETIC-STRUCTURE OF NI2MNSN AND NIMN2SN [J].

HELMHOLDT, RB ;

BUSCHOW, KHJ .

JOURNAL OF THE LESS-COMMON METALS, 1987, 128 :167-171