NMR study of α′-Na1−xV2O5

Abstract We report 51 V NMR study of the Na-deficient Na 1− x V 2 O 5 (x=0, 0.02, 0.04) with single-crystal samples. Above the charge-ordering temperature ( T c ), noticeable line broadening was observed at low temperatures in all the samples investigated. This line broadening is of magnetic origin and significantly decreases below T c . The origin of this observation is discussed concerning one-dimensional character of this system.