Magnetism in the strained ordered phases of Pt x Fe 1-x and Pt x Co 1-x ( x =0.25, 0.5, and 0.75)

Shuttleworth, IG ORCID: https://orcid.org/0000-0001-8655-9718, 2018. Magnetism in the strained ordered phases of Pt x Fe 1-x and Pt x Co 1-x ( x =0.25, 0.5, and 0.75). Journal of Physics and Chemistry of Solids, 114, pp. 153-162. ISSN 0022-3697

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Abstract

The response of the magnetic moment of the L10 and L12 ordered phases of PtxM1-x (M=Fe,Co) (x=0.25, 0.5, and 0.75) to compressive and tensile strains have been investigated using density functional theory (DFT). The magnetic moment of the Pt0.75M0.25 and Pt0.50M0.50 phases varies linearly compared to the response of the Pt0.25M0.75 alloys which shows a transition in the rate of change of magnetic moment at approximately zero strain. For all phases the mechanism of magnetic moment change under strain is shown to be intra-orbital charge transfer within the Pt, Fe and Co d shells. The strained and equilibrium magnetic band structures of each phase contain spin-orbit effects which are presented and discussed.

Item Type:	Journal article
Publication Title:	Journal of Physics and Chemistry of Solids
Creators:	Shuttleworth, I.G.
Publisher:	Elsevier
Date:	March 2018
Volume:	114
ISSN:	0022-3697
Identifiers:	Number Type 10.1016/j.jpcs.2017.11.021 DOI S0022369717317559 Publisher Item Identifier
Divisions:	Schools > School of Science and Technology
Record created by:	Jill Tomkinson
Date Added:	03 Jan 2018 16:45
Last Modified:	26 Nov 2018 03:00
URI:	https://irep.ntu.ac.uk/id/eprint/32269

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