Hysteresis and unusual magnetic properties in the singular Heusler alloy Ni45 Co5 Mn40 Sn10

Vijay Srivastava; Xian Chen; Richard D. James

doi:10.1063/1.3456562

Hysteresis and unusual magnetic properties in the singular Heusler alloy Ni₄₅ Co₅ Mn₄₀ Sn₁₀

Vijay Srivastava, Xian Chen, Richard D. James

Aerospace Engineering and Mechanics

Research output: Contribution to journal › Article › peer-review

132 Scopus citations

Abstract

The alloy Ni45 Co₅ Mn₄₀ Sn₁₀ is shown to be singular relative to nearby alloys in three following ways: (1) The austenite has remarkably high magnetization (1170 emu/ cm³) and low magnetic anisotropy. (2) The thermal hysteresis is near minimum. (3) The transformation temperature ∼135 °C is unusually high. Because the unusually large magnetization and low hysteresis is seen at relatively small applied fields, applications such as magnetic shape memory, energy conversion, and solid state refrigeration may become practical.

Original language	English (US)
Article number	014101
Journal	Applied Physics Letters
Volume	97
Issue number	1
DOIs	https://doi.org/10.1063/1.3456562
State	Published - Jul 5 2010

Bibliographical note

Funding Information:
Authors would like to acknowledge and extend heartfelt gratitude to DRDO, Govt. of India, for the financial assistance in executing this research work.

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10.1063/1.3456562

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N2 - The alloy Ni45 Co5 Mn40 Sn10 is shown to be singular relative to nearby alloys in three following ways: (1) The austenite has remarkably high magnetization (1170 emu/ cm3) and low magnetic anisotropy. (2) The thermal hysteresis is near minimum. (3) The transformation temperature ∼135 °C is unusually high. Because the unusually large magnetization and low hysteresis is seen at relatively small applied fields, applications such as magnetic shape memory, energy conversion, and solid state refrigeration may become practical.

AB - The alloy Ni45 Co5 Mn40 Sn10 is shown to be singular relative to nearby alloys in three following ways: (1) The austenite has remarkably high magnetization (1170 emu/ cm3) and low magnetic anisotropy. (2) The thermal hysteresis is near minimum. (3) The transformation temperature ∼135 °C is unusually high. Because the unusually large magnetization and low hysteresis is seen at relatively small applied fields, applications such as magnetic shape memory, energy conversion, and solid state refrigeration may become practical.

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