Topological Hall Effect in PrSb2
Abstract
PrSb2 exhibits a charge-density wave (CDW) transition at TCDW = 100 K and antiferromagnetic (AFM) ordering at TN = 5 K at ambient pressure. Hall resistivity measurements revealed an anomalous feature within the AFM state, which was attributed to the topological Hall effect (THE), ruling out contributions from the ordinary and anomalous Hall effects. Significantly, the THE anomaly diminished with increasing pressure and almost vanished as the CDW transition was suppressed near the critical pressure Pc = 1.0 GPa. These findings suggest a relationship between the CDW order and the appearance of the THE in PrSb2.
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