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000229995 005__ 20190317000755.0
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000229995 037__ $$aARTICLE
000229995 245__ $$aLow spin wave damping in the insulating chiral magnet Cu2OSeO3
000229995 260__ $$bAmerican Institute of Physics$$c2017$$aMelville
000229995 269__ $$a2017
000229995 300__ $$a5
000229995 336__ $$aJournal Articles
000229995 520__ $$aChiral magnets with topologically nontrivial spin order such as Skyrmions have generated enormous interest in both fundamental and applied sciences. We report broadband microwave spectroscopy performed on the insulating chiral ferrimagnet Cu2OSeO3. For the damping of magnetization dynamics we find a remarkably small Gilbert damping parameter of about 1x10^4 at 5 K. This value is only a factor of 4 larger than the one reported for the best insulating ferrimagnet yttrium iron garnet at room temperature. We detect a series of sharp resonances and attribute them to confined spin waves in the mm-sized samples. Considering the small damping, insulating chiral magnets turn out to be promising candidates when exploring non-collinear spin structures for high frequency applications.
000229995 6531_ $$askyrmion
000229995 6531_ $$amagnonics
000229995 6531_ $$askyrmionics
000229995 6531_ $$achiral magnet
000229995 6531_ $$aferrimagnet
000229995 6531_ $$aDzyaloshinskii-Moriya interaction
000229995 6531_ $$aferromagnetic resonance
000229995 6531_ $$aGilbert damping
000229995 6531_ $$ananoskyrmionics
000229995 700__ $$aStasinopoulos, I
000229995 700__ $$aWeichselbaumer, S
000229995 700__ $$aBauer, A
000229995 700__ $$aWaizner, J
000229995 700__ $$0240360$$g104502$$aBerger, H
000229995 700__ $$aMaendl, S
000229995 700__ $$aGarst, M
000229995 700__ $$aPfleiderer, C
000229995 700__ $$aGrundler, D
000229995 773__ $$j111$$tApplied Physics Letters$$q032408
000229995 8564_ $$uhttps://infoscience.epfl.ch/record/229995/files/pdf_archiveAPPLABvol_111iss_3032408_1_am.pdf$$zn/a$$s1535194$$yn/a
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