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Switching the soft shearing mode orientation in Ni-Mn-Ga non-modulated martensite by Co and Cu doping
- 1.0535748 - ÚT 2021 RIV GB eng J - Journal Article
Bodnárová, Lucie - Zelený, M. - Sedlák, Petr - Straka, Ladislav - Heczko, Oleg - Sozinov, A. - Seiner, Hanuš
Switching the soft shearing mode orientation in Ni-Mn-Ga non-modulated martensite by Co and Cu doping.
Smart Materials and Structures. Roč. 29, č. 4 (2020), č. článku 045022. ISSN 0964-1726. E-ISSN 1361-665X
R&D Projects: GA ČR(CZ) GA17-00062S
Institutional support: RVO:61388998 ; RVO:68378271
Keywords : magnetic shape memory * elastic constants * acoustic methods * ab initio calculations * resonant ultrasound spectroscopy
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
Impact factor: 3.585, year: 2020
Method of publishing: Limited access
https://iopscience.iop.org/article/10.1088/1361-665X/ab7542/meta
Resonant ultrasound spectroscopy measurements and density functional theory calculations were used to analyze the effect of Co and Cu doping (3-6 at. %) on elastic constants of non-modulated martensite of the Ni-Mn-Ga ferromagnetic shape memory alloy. Due to the doping, the studied alloys exhibited decreased tetragonal ratios c/a = 1.14. Both the experiments and the calculations revealed that the lowering of the c/a ratio resulted in a change of the orientation of the softest shearing modes of the tetragonal lattice.
Permanent Link: http://hdl.handle.net/11104/0314741
Number of the records: 1