Anomalous Hall effect in a triangular-lattice antiferromagnet UNiB

Oyamada, Akira*; Inohara, Takao*; Yamamoto, Etsuji  ; Haga, Yoshinori   

We report the Hall effect measurements on a triangular-lattice antiferromagnet UNiB in the context of the proposed relevance of the ferroic order. Our measurements show that the Hall voltage is proportional to the square of the electric current and its coefficient increases significantly below the transition temperature, which supports the theoretical prediction.