Publication Date

2-2018

Department

Ames Laboratory; Materials Science & Engineering

Campus Units

Materials Science and Engineering, Ames Laboratory

OSTI ID+

1415798

Report Number

IS-J-9532

DOI

10.1016/j.jmmm.2017.04.005

Journal Title

Journal of Magnetism and Magnetic Materials

Volume Number

448

First Page

9

Last Page

12

Abstract

Using first-principles calculations, based on disordered local moment theory, combined with the self-interaction corrected local spin density approximation, we study magnetic interactions in GdX intermetallics for X = Cu, Zn, Ga, Cd, and Mg. Our predicted magnetic orders and ordering temperatures both at zero and other pressures agree well with experiments including the large increase in the Curie temperature of GdCd under pressure that is shown by our own experimental measurements. From our results it emerges that the Ruderman-Kittel-Kasuya-Yosida interaction on its own can not explain the observed behaviour under pressure, and that the magnetic ordering mechanism is strongly influenced by the occupations of both Gd and anion d-bands.

Language

en

Department of Energy Subject Categories

36 MATERIALS SCIENCE

Publisher

Iowa State University Digital Repository, Ames IA (United States)

Included in

Metallurgy Commons

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