Original title: Magnetocrystalline anisotropy of Ni-Mn-Ga-Co-Cu martensite
Authors: Rameš, Michal ; Straka, Ladislav ; Sozinov, A. ; Heczko, Oleg
Document type: Papers
Conference/Event: Studentská vědecká konference fyziky pevných látek a materiálů /11./, Praha (CZ), 20220912
Year: 2022
Language: eng
Abstract: The martensites of Heusler alloys based on Ni-Mn-Ga exhibit magnetically-induced reorientation resulting in giant field-induced strain. Up to 12% strain was observed in Ni-Mn-Ga-Co-Cu with 4 at.% of Co and Cu. The driving force of the phenomenon is the magnetocrystalline anisotropy. We studied evolution of the anisotropy with temperature and compositions using magnetiyation curve measurements in four different single crystalline Ni-Mn-Ga-Co-Cu and compared with non-doped Ni-Mn-Ga. The anisotropy of martensite decreases with increasing average doping (Co+Cu)/2 but it does not scale with tetragonal ratio or valence electron concentration.
Keywords: Heusler alloys; magnetocrystalline anisotropy; martensite; Ni-Mn-Ga
Project no.: GA21-06613S (CEP), LM2018096 (CEP)
Funding provider: GA ČR, GA MŠk
Host item entry: Sborník příspěvků 11. Studentské vědecké konference fyziky pevných látek a materiálů, ISBN 978-80-01-07079-6

Institution: Institute of Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0337801

Permalink: http://www.nusl.cz/ntk/nusl-512287


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