Publication Date

12-30-2019

Department

Ames Laboratory; Physics and Astronomy

Campus Units

Physics and Astronomy, Ames Laboratory

OSTI ID+

1595768

Report Number

IS-J 10140

DOI

10.1063/1.5129682@adv.2020.MMM2020.issue-1

Journal Title

AIP Advances

Volume Number

9

First Page

125050

Abstract

151Eu Mössbauer spectroscopy confirms that the europium in EuAg4As2 is fully divalent and that the spectrum at 5 K consists of a single, sharp magnetic pattern with a hyperfine field (Bhf) of 27.1(1) T and an isomer shift of −11.04(3) mm/s (relative to EuF3). The temperature dependence of the spectra shows that the ordering of the Eu moments proceeds via an incommensurate sine modulated structure starting at 15 K. The structure squares up below 9 K. A search for charge density or phonon softening signatures at the 120 K structural transition was not successful.

DOE Contract Number(s)

SC0011978; AC02-07CH11358

Language

en

Department of Energy Subject Categories

71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Publisher

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

Included in

Physics Commons

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