First-principles calculation of spin spirals in Ni2MnAl and Ni2MnGa

Enkovaara, Jussi; Ayuela, Andrés; Jalkanen, Jari; Nieminen, Risto M.; Nordström, Lars

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dc.contributor	Aalto-yliopisto	fi
dc.contributor	Aalto University	en
dc.contributor.author	Enkovaara, Jussi
dc.contributor.author	Ayuela, Andrés
dc.contributor.author	Jalkanen, Jari
dc.contributor.author	Nieminen, Risto M.
dc.contributor.author	Nordström, Lars
dc.date.accessioned	2018-05-22T14:31:02Z
dc.date.available	2018-05-22T14:31:02Z
dc.date.issued	2003
dc.identifier.citation	Enkovaara , J , Ayuela , A , Jalkanen , J , Nieminen , R M & Nordström , L 2003 , ' First-principles calculation of spin spirals in Ni 2 MnAl and Ni 2 MnGa ' , Physical Review B , vol. 67 , no. 5 , 054417 , pp. 1-7 . https://doi.org/10.1103/PhysRevB.67.054417	en
dc.identifier.issn	1550-235X
dc.identifier.other	PURE UUID: 21b41352-338a-4241-bcd7-7fd0ed6ae978
dc.identifier.other	PURE ITEMURL: https://research.aalto.fi/en/publications/firstprinciples-calculation-of-spin-spirals-in-ni2mnal-and-ni2mnga(21b41352-338a-4241-bcd7-7fd0ed6ae978).html
dc.identifier.other	PURE FILEURL: https://research.aalto.fi/files/14664847/PhysRevB.67.054417_1.pdf
dc.identifier.uri	https://aaltodoc.aalto.fi/handle/123456789/30800
dc.description.abstract	We report here noncollinear magnetic configurations in the Heusler alloys Ni2MnGa and Ni2MnAl which are interesting in the context of the magnetic shape memory effect. The total energies for different spin spirals are calculated and the ground-state magnetic structures are identified. The calculated dispersion curves are used to estimate the Curie temperature which is found to be in good agreement with experiments. In addition, the variation of the magnetic moment as a function of the spiral structure is studied. Most of the variation is associated with Ni, and symmetry constraints relevant for the magnetization are identified. Based on the calculated results, the effect of the constituent atoms in determining the Curie temperature is discussed.	en
dc.format.extent	1-7
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.relation.ispartofseries	Physical Review B	en
dc.relation.ispartofseries	Volume 67, issue 5	en
dc.rights	openAccess	en
dc.title	First-principles calculation of spin spirals in Ni2MnAl and Ni2MnGa	en
dc.type	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä	fi
dc.description.version	Peer reviewed	en
dc.contributor.department	Department of Applied Physics	en
dc.identifier.urn	URN:NBN:fi:aalto-201805222240
dc.identifier.doi	10.1103/PhysRevB.67.054417
dc.type.version	publishedVersion