Magnetocaloric effect and magnetization in a Ni-Mn-Ga Heusler alloy in the vicinity of magnetostructural transition

被引：59

作者：

Aliev, A

Batdalov, A

Bosko, S

Buchelnikov, V

Dikshtein, I

Khovailo, V

Koledov, V

Levitin, R

Shavrov, V

Takagi, T

机构：

[1] RAS, Inst Radioengn & Elect, Moscow 101999, Russia

[2] RAS, Inst Phys Dagestan SC, Makhachkala 367003, Russia

[3] Chelyabinsk State Univ, Chelyabinsk 454021, Russia

[4] Natl Inst Adv Ind Sci & Technol, Tohoku Ctr, Sendai, Miyagi 9838551, Japan

[5] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia

[6] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

ferromagnetism; magnetostructural phase transition; magnetization; magnetocaloric effect;

D O I：

10.1016/j.jmmm.2003.12.1363

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic and thermodynamic properties of a Ni2.19Mn0.81Ga alloy with coupled magnetic and structural (martensitic) phase transitions were studied experimentally and theoretically. The magnetocaloric effect was measured by a direct method in magnetic fields 0-26 kOe at temperatures close to the magnetostructural transition temperature. For theoretical description of the alloy properties near the magnetostructural transition a statistical model is suggested, that takes into account the coexistence of martensite and austenite domains in the vicinity of martensite transformation point. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：2040 / 2042

页数：3

共 6 条

[1] The kinetics of phase transformations in ferromagnetic shape memory alloys Ni-Mn-Ga [J].