Observation of Spin Freezing in CaV4O9 and CaV2O5 by uSR

G.M.Luke , Y.Fudamoto , K.M.Kojima , M.Larkin , J.Merrin , B.Nachumi , S.Sinawi , Y.J.Uemura

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M.J.P.Gingras M.Sato S.Taniguchi M.Isobe Y.Ueda

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classification ❄️ cond-mat.str-el

keywords spinfreezingbeenbehaviorbelowcav2o5cav4o9compounds

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We have performed muon spin relaxation and susceptibility measurements of CaV_4O_9 and CaV_2O_5, systems in which spin gap-like behavior has been found. We observe spin freezing in the two compounds below 12K and 50K, respectively. Our results indicate the possibility that a substantial fraction of the of the vanadium magnetic moment is not in a spin singlet sate at low temperatures in either material.

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Observation of Spin Freezing in CaV4O9 and CaV2O5 by uSR

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