Magnetic Domain Structure and Magnetically-Induced Reorientation in Ni-Mn-Ga Magnetic Shape Memory Alloy

• Authors: O. Heczko , V. Bradshaw
• Languages of publication: EN

Abstracts

EN

Magnetization process during magnetically induced reorientation and related magnetic domains of cuboid Ni_{50}Mn_{28.5}Ga_{21.5} single crystal with {100} faces was investigated. Magnetic domains were visualized using magneto-optical indicator. The domains pattern is determined by strong uniaxial magnetic anisotropy of Ni-Mn-Ga martensite. Thanks to magnetically induced reorientation the domains arrangements for all three crystal orientations could be obtained and we showed that the size of domains scales with square root of the thickness and penetrates through whole crystal. Visualization of magnetic domains on all faces of cuboid provides the 3D model of magnetic domains.

Keywords

EN

75.50.Cc; 75.60.Ch; 75.80.+q

Discipline

• 75.60.Ch: Domain walls and domain structure(for magnetic bubbles and vortices, see 75.70.Kw)
• 75.50.Cc: Other ferromagnetic metals and alloys
• 75.80.+q: Magnetomechanical effects, magnetostriction(for magnetostrictive devices, see 85.70.Ec)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 1063-1065

Dates

published

2017-04

Contributors

author

O. Heczko

• Dep. of Functional Materials, Institute of Physics, CAS, Na Slovance 2, 18228 Prague 8, Czech Republic

author

V. Bradshaw

• Dep. of Functional Materials, Institute of Physics, CAS, Na Slovance 2, 18228 Prague 8, Czech Republic

References

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Identifiers

DOI

10.12693/APhysPolA.131.1063