% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Xiao:810796, author = {Xiao, Y. and Nandi, S. and Su, Y. and Fu, Z. and Faulhaber, E. and Schneidewind, A. and Brückel, Th. and Kumar, Naveen and Jin, Wentao}, title = {{S}pin-wave and electromagnon dispersions in multiferroic {M}n{WO} 4 as observed by neutron spectroscopy: {I}sotropic {H}eisenberg exchange versus anisotropic {D}zyaloshinskii-{M}oriya interaction}, journal = {Physical review / B}, volume = {93}, number = {21}, issn = {2469-9950}, address = {College Park, Md.}, publisher = {APS}, reportid = {FZJ-2016-03385}, pages = {214428}, year = {2016}, abstract = {High-resolution inelastic neutron scattering reveals that the elementary magnetic excitations in multiferroic MnWO4 consist of low-energy dispersive electromagnons in addition to the well-known spin-wave excitations. The latter can well be modeled by a Heisenberg Hamiltonian with magnetic exchange coupling extending to the 12th nearest neighbor. They exhibit a spin-wave gap of 0.61(1) meV. Two electromagnon branches appear at lower energies of 0.07(1) and 0.45(1) meV at the zone center. They reflect the dynamic magnetoelectric coupling and persist in both the collinear magnetic and paraelectric AF1 phase and the spin spiral ferroelectric AF2 phase. These excitations are associated with the Dzyaloshinskii-Moriya exchange interaction, which is significant due to the rather large spin-orbit coupling.}, cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-SNS / JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II}, ddc = {530}, cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 / $I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-SNS-20110128 / I:(DE-Juel1)JCNS-FRM-II-20110218}, pnm = {144 - Controlling Collective States (POF3-144) / 524 - Controlling Collective States (POF3-524) / 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) / 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)}, pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 / G:(DE-HGF)POF3-6G4}, experiment = {EXP:(DE-MLZ)PANDA-20140101}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000378104100004}, doi = {10.1103/PhysRevB.93.214428}, url = {https://juser.fz-juelich.de/record/810796}, }