Suppression of ferromagnetism within antiphase boundaries in Ni 50Mn25Al12.5Ga12.5 alloy

Yasukazu Murakami, T. Yano, R. Y. Umetsu, R. Kainuma, D. Shindo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper reports on the unexpectedly narrow magnetic domain walls observed at the positions of antiphase boundaries (APB) in a system of ferromagnetic shape memory alloys Ni50Mn25Al 12.5Ga12.5. Lorentz microscopy observations determined the wall width at the APB position to be 12 nm, which is substantially smaller than the width at the APB-free position of 48 nm. This result can be explained by the modulation of magnetic parameters near APB, within which ferromagnetism is suppressed by the deterioration of Heusler-type ordering.

Original languageEnglish
Pages (from-to)895-898
Number of pages4
JournalScripta Materialia
Volume65
Issue number10
DOIs
Publication statusPublished - Nov 1 2011
Externally publishedYes

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Magnetic domains
antiphase boundaries
Ferromagnetism
Domain walls
Shape memory effect
ferromagnetism
Deterioration
Microscopic examination
Modulation
retarding
shape memory alloys
magnetic domains
deterioration
domain wall
microscopy
modulation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Suppression of ferromagnetism within antiphase boundaries in Ni 50Mn25Al12.5Ga12.5 alloy. / Murakami, Yasukazu; Yano, T.; Umetsu, R. Y.; Kainuma, R.; Shindo, D.

In: Scripta Materialia, Vol. 65, No. 10, 01.11.2011, p. 895-898.

Research output: Contribution to journalArticle

Murakami, Yasukazu ; Yano, T. ; Umetsu, R. Y. ; Kainuma, R. ; Shindo, D. / Suppression of ferromagnetism within antiphase boundaries in Ni 50Mn25Al12.5Ga12.5 alloy. In: Scripta Materialia. 2011 ; Vol. 65, No. 10. pp. 895-898.
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