Ni2MnAl single crystals for magnetic scattering neutron holography

Tokujiro Yamamoto; Kouichi Hayashi; Toetsu Shishido

doi:10.1380/ejssnt.2011.331

Ni₂MnAl single crystals for magnetic scattering neutron holography

Tokujiro Yamamoto, Kouichi Hayashi, Toetsu Shishido

Materials Development Division

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Ni₂MnAl phase has the B2 crystal structure when an alloy was prepared at the moderate cooling rate. However, the crystal structure of Ni ₂MnAl oders from the B2 structure to the L2₁ structure by annealing at lower temperature than approximately 773 K. Ni₂MnAl with the L2₁ structure exhibits martensitic phase transformation and ferromagnetic phase transition with decreasing temperature. On the contrary, Ni₂MnAl with high Al content with the B2 structure exhibit no martensitic transformation but antiferromagnetic transition. With further cooling, Ni₂MnAl with the B2 structure exhibit transition from antiferromagnetic phase to spin glass phase. Ni₂MnAl with the B2 structure is suitable for developing a method to measure spin state of solids.

Original language	English
Pages (from-to)	331-333
Number of pages	3
Journal	e-Journal of Surface Science and Nanotechnology
Volume	9
DOIs	https://doi.org/10.1380/ejssnt.2011.331
Publication status	Published - 2011 Sep 10

Keywords

Antiferromagnetic transition
Magnetic measurement
Magnetic phenomena
Scanning electron microscopy
Shape memory alloys

ASJC Scopus subject areas

Biotechnology
Bioengineering
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1380/ejssnt.2011.331

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Yamamoto, T., Hayashi, K., & Shishido, T. (2011). Ni₂MnAl single crystals for magnetic scattering neutron holography. e-Journal of Surface Science and Nanotechnology, 9, 331-333. https://doi.org/10.1380/ejssnt.2011.331

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abstract = "Ni2MnAl phase has the B2 crystal structure when an alloy was prepared at the moderate cooling rate. However, the crystal structure of Ni 2MnAl oders from the B2 structure to the L21 structure by annealing at lower temperature than approximately 773 K. Ni2MnAl with the L21 structure exhibits martensitic phase transformation and ferromagnetic phase transition with decreasing temperature. On the contrary, Ni2MnAl with high Al content with the B2 structure exhibit no martensitic transformation but antiferromagnetic transition. With further cooling, Ni2MnAl with the B2 structure exhibit transition from antiferromagnetic phase to spin glass phase. Ni2MnAl with the B2 structure is suitable for developing a method to measure spin state of solids.",

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AU - Yamamoto, Tokujiro

AU - Hayashi, Kouichi

AU - Shishido, Toetsu

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N2 - Ni2MnAl phase has the B2 crystal structure when an alloy was prepared at the moderate cooling rate. However, the crystal structure of Ni 2MnAl oders from the B2 structure to the L21 structure by annealing at lower temperature than approximately 773 K. Ni2MnAl with the L21 structure exhibits martensitic phase transformation and ferromagnetic phase transition with decreasing temperature. On the contrary, Ni2MnAl with high Al content with the B2 structure exhibit no martensitic transformation but antiferromagnetic transition. With further cooling, Ni2MnAl with the B2 structure exhibit transition from antiferromagnetic phase to spin glass phase. Ni2MnAl with the B2 structure is suitable for developing a method to measure spin state of solids.

AB - Ni2MnAl phase has the B2 crystal structure when an alloy was prepared at the moderate cooling rate. However, the crystal structure of Ni 2MnAl oders from the B2 structure to the L21 structure by annealing at lower temperature than approximately 773 K. Ni2MnAl with the L21 structure exhibits martensitic phase transformation and ferromagnetic phase transition with decreasing temperature. On the contrary, Ni2MnAl with high Al content with the B2 structure exhibit no martensitic transformation but antiferromagnetic transition. With further cooling, Ni2MnAl with the B2 structure exhibit transition from antiferromagnetic phase to spin glass phase. Ni2MnAl with the B2 structure is suitable for developing a method to measure spin state of solids.

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KW - Scanning electron microscopy

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