Journal Article

FZJ-2018-06259

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Theoretical spin-wave dispersions in the antiferromagnetic phase AF1 of MnWO 4 based on the polar atomistic model in P 2

Liu, B.-Q.Extern*FZJ* ; Park, S.-H.Extern* ; Čermák, P.FZJ* ; Schneidewind, A.FZJ* ; Xiao, Y. (Corresponding author)

2018
IOP Publ.80390 Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/20159  doi:10.1088/1361-648X/aaca67

Abstract: The spin wave dispersions of the low temperature antiferromagnetic phase (AF1) MnWO4have been numerically calculated based on the recently reported non-collinear spinconfiguration with two different canting angles. A Heisenberg model with competing magneticexchange couplings and single-ion anisotropy terms could properly describe the spin waveexcitations, including the newly observed low-lying energy excitation mode 2 = 0.45 meVappearing at the magnetic zone centre. The spin wave dispersion and intensities are highlysensitive to two differently aligned spin-canting sublattices in the AF1 model. Thus this studyreinsures the otherwise hardly provable hidden polar character in MnWO4.

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

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2018

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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