12% magnetic field-induced strain in Ni-Mn-Ga-based non-modulated martensite

Magnetic field-induced strain (MFIS) of 12% is reported in ferromagnetic Ni46Mn24Ga22Co4Cu4 martensite exhibiting non-modulated (NM) tetragonal crystal structure with lattice parameter ratio c/a>1. The strain was measured at ambient temperature in a magnetic field of the order of 1 T. The twinnin...

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Bibliographic Details
Published in:Applied physics letters 2013-01, Vol.102 (2)
Main Authors: Sozinov, A., Lanska, N., Soroka, A., Zou, W.
Format: Article
Language:English
Subjects:
Crystal structure
Lattice parameters
Magnetic fields
Martensite
MFI
Nickel
Strain
Stresses
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Summary:Magnetic field-induced strain (MFIS) of 12% is reported in ferromagnetic Ni46Mn24Ga22Co4Cu4 martensite exhibiting non-modulated (NM) tetragonal crystal structure with lattice parameter ratio c/a>1. The strain was measured at ambient temperature in a magnetic field of the order of 1 T. The twinning stress σTW and the magnetic stress σMAG were also measured and the condition for a giant MFIS observation σTW
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4775677