Magnetic domain structure across the austenite-martensite interface in Ni.sub.50./sub.Mn.sub.25./sub.Ga.sub.20./sub.Fe.sub.5./sub. single crystalline thin foil

0548669 - FZÚ 2022 RIV US eng J - Journal Article
Vronka, Marek - Straka, Ladislav - Klementová, Mariana - Heczko, Oleg
Magnetic domain structure across the austenite-martensite interface in Ni₅₀Mn₂₅Ga₂₀Fe₅ single crystalline thin foil.
Applied Physics Letters. Roč. 119, č. 21 (2021), č. článku 212901. ISSN 0003-6951. E-ISSN 1077-3118
R&D Projects: GA ČR GA19-09882S; GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LM2018110
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : Lorentz transmission electron microscopy (LTEM) * shape memory alloys * magnetic domain structure
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.971, year: 2021
Method of publishing: Limited access
https://doi.org/10.1063/5.0066983

We study the magnetic domain structure (MDS) in Ni50Mn25Ga20Fe5 single crystalline foil using Lorentz transmission electron microscopy. The martensite in the thicker region contains no twin domains and exhibits dense labyrinth MDS with magnetization out-of-plane. The austenite in the thinner region exhibits broad magnetic domains with magnetization in-plane. The transformation interface is about 1 μm broad, formed by an unusual nanosized laminated structure of austenite and martensite.
Permanent Link: http://hdl.handle.net/11104/0324775