Co-occurrence of magnetic and structural transitions in the Heusler alloy Ni53Mn25Ga22

Chengbao Jiang; Gen Feng; Huibin Xu

doi:10.1063/1.1457528

Co-occurrence of magnetic and structural transitions in the Heusler alloy Ni₅₃Mn₂₅Ga₂₂

Chengbao Jiang^*
, Gen Feng
, Huibin Xu

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

65 Scopus citations

Abstract

A co-occurrence of magnetic and structural transitions was observed in a nonstoichiometric Ni₅₃Mn₂₅Ga₂₂ alloy which undergoes a reverse martensitic transformation from ferromagnetic martensite to paramagnetic austenite at a magnetic transition temperature (134°C) higher than the Curie temperature of the stoichiometric Ni₂MnGa alloy (103°C). The effect of the magnetic field on the phase transition temperature was found to be two orders of magnitude greater in the present alloy than in Ni₂MnGa due to the absence of the ferromagnetic state in austenite. This may open the possibility of utilizing NiMnGa alloys at a low magnetic field.

Original language	English
Pages (from-to)	1619-1621
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	9
DOIs	https://doi.org/10.1063/1.1457528
State	Published - 4 Mar 2002

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title = "Co-occurrence of magnetic and structural transitions in the Heusler alloy Ni53Mn25Ga22",

abstract = "A co-occurrence of magnetic and structural transitions was observed in a nonstoichiometric Ni53Mn25Ga22 alloy which undergoes a reverse martensitic transformation from ferromagnetic martensite to paramagnetic austenite at a magnetic transition temperature (134°C) higher than the Curie temperature of the stoichiometric Ni2MnGa alloy (103°C). The effect of the magnetic field on the phase transition temperature was found to be two orders of magnitude greater in the present alloy than in Ni2MnGa due to the absence of the ferromagnetic state in austenite. This may open the possibility of utilizing NiMnGa alloys at a low magnetic field.",

author = "Chengbao Jiang and Gen Feng and Huibin Xu",

year = "2002",

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doi = "10.1063/1.1457528",

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T1 - Co-occurrence of magnetic and structural transitions in the Heusler alloy Ni53Mn25Ga22

AU - Jiang, Chengbao

AU - Feng, Gen

AU - Xu, Huibin

PY - 2002/3/4

Y1 - 2002/3/4

N2 - A co-occurrence of magnetic and structural transitions was observed in a nonstoichiometric Ni53Mn25Ga22 alloy which undergoes a reverse martensitic transformation from ferromagnetic martensite to paramagnetic austenite at a magnetic transition temperature (134°C) higher than the Curie temperature of the stoichiometric Ni2MnGa alloy (103°C). The effect of the magnetic field on the phase transition temperature was found to be two orders of magnitude greater in the present alloy than in Ni2MnGa due to the absence of the ferromagnetic state in austenite. This may open the possibility of utilizing NiMnGa alloys at a low magnetic field.

AB - A co-occurrence of magnetic and structural transitions was observed in a nonstoichiometric Ni53Mn25Ga22 alloy which undergoes a reverse martensitic transformation from ferromagnetic martensite to paramagnetic austenite at a magnetic transition temperature (134°C) higher than the Curie temperature of the stoichiometric Ni2MnGa alloy (103°C). The effect of the magnetic field on the phase transition temperature was found to be two orders of magnitude greater in the present alloy than in Ni2MnGa due to the absence of the ferromagnetic state in austenite. This may open the possibility of utilizing NiMnGa alloys at a low magnetic field.

UR - https://www.scopus.com/pages/publications/79956030436

U2 - 10.1063/1.1457528

DO - 10.1063/1.1457528

M3 - 文章

AN - SCOPUS:79956030436

SN - 0003-6951

VL - 80

SP - 1619

EP - 1621

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

ER -

Co-occurrence of magnetic and structural transitions in the Heusler alloy Ni₅₃Mn₂₅Ga₂₂

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