Effect of Co on magnetic property and phase stability of Ni Mn Ga ferromagnetic shape memory alloys: A first-principles study

Chang Long Tan; Jiu Xing Jiang; Xiao Hua Tian; Wei Cai

doi:10.1088/1674-1056/19/10/107102

Effect of Co on magnetic property and phase stability of Ni Mn Ga ferromagnetic shape memory alloys: A first-principles study

Chang Long Tan
, Jiu Xing Jiang
, Xiao Hua Tian
, Wei Cai

Harbin University of Science and Technology
Harbin Institute of Technology

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

4 Scopus citations

Abstract

The effect of Co content on magnetic property and phase stability of Ni_50-xMn₂₅Ga₂₅Co_x ferromagnetic shape memory alloys has been investigated using first-principles calculations. The total energy difference between paramagnetic and ferromagnetic state of austenite plays an important role in the magnetic transition. The high Curie temperature can be attributed to the stronger Co-Mn exchange interaction as compared to the Ni-Mn one. The phase stability of Ni_50-xMn ₂₅Ga₂₅Co_x austenite increases with increasing Co content, which is discussed based on the electronic structure.

Original language	English
Article number	107102
Journal	Chinese Physics B
Volume	19
Issue number	10
DOIs	https://doi.org/10.1088/1674-1056/19/10/107102
State	Published - Oct 2010
Externally published	Yes

Keywords

Electronic band structure
Ferromagnetic shape memory alloys
Magnetic properties
Martensitic transformations

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10.1088/1674-1056/19/10/107102

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title = "Effect of Co on magnetic property and phase stability of Ni Mn Ga ferromagnetic shape memory alloys: A first-principles study",

abstract = "The effect of Co content on magnetic property and phase stability of Ni50-xMn25Ga25Cox ferromagnetic shape memory alloys has been investigated using first-principles calculations. The total energy difference between paramagnetic and ferromagnetic state of austenite plays an important role in the magnetic transition. The high Curie temperature can be attributed to the stronger Co-Mn exchange interaction as compared to the Ni-Mn one. The phase stability of Ni50-xMn 25Ga25Cox austenite increases with increasing Co content, which is discussed based on the electronic structure.",

keywords = "Electronic band structure, Ferromagnetic shape memory alloys, Magnetic properties, Martensitic transformations",

author = "Tan, \{Chang Long\} and Jiang, \{Jiu Xing\} and Tian, \{Xiao Hua\} and Wei Cai",

year = "2010",

month = oct,

doi = "10.1088/1674-1056/19/10/107102",

language = "英语",

volume = "19",

journal = "Chinese Physics B",

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T1 - Effect of Co on magnetic property and phase stability of Ni Mn Ga ferromagnetic shape memory alloys

T2 - A first-principles study

AU - Tan, Chang Long

AU - Jiang, Jiu Xing

AU - Tian, Xiao Hua

AU - Cai, Wei

PY - 2010/10

Y1 - 2010/10

N2 - The effect of Co content on magnetic property and phase stability of Ni50-xMn25Ga25Cox ferromagnetic shape memory alloys has been investigated using first-principles calculations. The total energy difference between paramagnetic and ferromagnetic state of austenite plays an important role in the magnetic transition. The high Curie temperature can be attributed to the stronger Co-Mn exchange interaction as compared to the Ni-Mn one. The phase stability of Ni50-xMn 25Ga25Cox austenite increases with increasing Co content, which is discussed based on the electronic structure.

AB - The effect of Co content on magnetic property and phase stability of Ni50-xMn25Ga25Cox ferromagnetic shape memory alloys has been investigated using first-principles calculations. The total energy difference between paramagnetic and ferromagnetic state of austenite plays an important role in the magnetic transition. The high Curie temperature can be attributed to the stronger Co-Mn exchange interaction as compared to the Ni-Mn one. The phase stability of Ni50-xMn 25Ga25Cox austenite increases with increasing Co content, which is discussed based on the electronic structure.

KW - Electronic band structure

KW - Ferromagnetic shape memory alloys

KW - Magnetic properties

KW - Martensitic transformations

UR - https://www.scopus.com/pages/publications/78649428290

U2 - 10.1088/1674-1056/19/10/107102

DO - 10.1088/1674-1056/19/10/107102

M3 - 文章

AN - SCOPUS:78649428290

SN - 1674-1056

VL - 19

JO - Chinese Physics B

JF - Chinese Physics B

IS - 10

M1 - 107102

ER -

Effect of Co on magnetic property and phase stability of Ni Mn Ga ferromagnetic shape memory alloys: A first-principles study

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Keywords

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