Magnetic and Specific Heat Studies of NdVO₄

Abstract

A magnetic susceptibility in NdVO₄ was measured in the temperature range of 10 mK to 300 K. An ac magnetic susceptibility along the c-axis of the crystal showed an antiferromagnetic parallel susceptibility with the Néel temperature T_N=820 mK. Along the a-axis, the ac susceptibility showed a sharp peak at 840 mK. The peak can be understood by a pinning of the weak ferromagnetic domains. The specific heat was also measured below 1 K in zero and 1 T magnetic field. The field dependence of the Néel temperature was also investigated.