Ab initio study of the phase stability of modulated structures in Co-doped Ni-Mn-In (Sn) Heusler alloys

Autor:	K R Erager, V V Sokolovskiy, V D Buchelnikov
Rok vydání:	2022
Zdroj:	IOP Conference Series: Materials Science and Engineering. 1213:012008
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/1213/1/012008
Popis:	Using ab initio calculations, the phase stability of modulated and tetragonal martensitic structures in Ni43.75Co6.25Mn43.75(In, Sn)6.25 Heusler alloys with different magnetic order is investigated. The stability against the segregation is considered by a method for generating all possible decay reactions assuming the calculated ground state energies of each composition. It is shown that the highest probable stability under equilibrium conditions is demonstrated by alloys with tetragonal martensitic structure in accordance with reactions: Ni35Co5Mn35In5 → 25Mn + 35Ni + 5Mn2InCo and Ni35Co5Mn35Sn5 → 5CoSn + 35Mn + 35Ni.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::782742cf273fbcb8fcfb16629c959733 https://doi.org/10.1088/1757-899x/1213/1/012008 Zobrazit plný text záznamu