Journal Article

IMPULSE-2026-00048

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Rotational magnetoelastic interactions in the Dzyaloshinskii-Moriya magnet Ba$_{2}$CuGe$_{2}$O$_{7}$

Sourd, J. ; Kotte, T. ; Wild, P. ; Mühlbauer, S. ; Wosnitza, J. ; Zherlitsyn, S.

2025
Inst. Woodbury, NY

Please use a persistent id in citations: doi:10.1103/PhysRevB.111.224411

Abstract: We report the magnetoelastic properties of a Ba$_{2}$CuGe$_{2}$O$_{7}$ single crystal at low temperatures under a magnetic field applied along the crystallographic [001] axis. Our results extend to low temperatures, the 𝐻−𝑇 phase diagram determined for this compound by neutron scattering. Furthermore, we observe that specific elastic modes are more sensitive to the various magnetic transitions. In particular, we observe an unusual coupling between the transverse acoustic mode in the (001) plane and the cycloidal order at low field, which suggests a spin-strain mechanism originating from Dzyaloshinskii-Moriya interaction in this compound.

Keyword(s): Magnetic Materials (1st) ; Condensed Matter Physics (2nd) ; Magnetism (2nd)

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Contributing Institute(s):

1. SANS1 (SANS1)

Experiment(s):

1. No specific instrument

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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