Publication Date

8-31-2020

Department

Ames Laboratory; Physics and Astronomy

Campus Units

Ames Laboratory, Physics and Astronomy

OSTI ID+

1663151

Report Number

IS-J 10316

DOI

10.1103/PhysRevMaterials.4.084411

Journal Title

Physical Review Materials

Volume Number

4

Issue Number

8

First Page

084411

Abstract

We report investigations of the structural, magnetic, electrical transport, and thermal properties of five compositions of the metallic perovskite GdRh3C1−xBx (0.00≤x≤1.00). Our results show that all five compositions undergo magnetic ordering at low temperatures, but the nature of the ordered state is significantly different in the carbon- and the boron-rich compositions, where the former shows signatures of an amplitude-modulated magnetic structure and the latter exhibits evidence of an equal-moment incommensurate antiferromagnetic ordering. We also observe a remarkable field-dependent evolution of conduction carrier polarization in the compositionally disordered compounds. The outcomes indicate that this system is energetically situated in proximity to a magnetic instability where small variations in the control parameter(s), such as the lattice constant and/or electron density, lead to considerably different ground states.

DOE Contract Number(s)

AC02-07CH11358; 001.254.87581018503; 001.000.8758101.3113101

Language

en

Publisher

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

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