Magnetoresistance and de Haas-van Alphen Effect in the Antiferromagnetic Compound NdIn_<b>3</b>

Abstract

We have measured the magnetoresistance and de Haas-van Alphen (dHvA) effect in both the antiferromagnetic and paramagnetic states of NdIn 3 . Many dHvA branches are detected in the dHvA experiments. Among them, a nearly spherical Fermi surface in the paramagnetic state, which corresponds to a band 7-electron Fermi surface of the non-4 f reference compound LaIn 3 , is changed in the antiferromagnetic state into a multiply connected Fermi surface with necks. The cyclotron masses of NdIn 3 are in the range of 0.30 m 0 to 1.05 m 0 , which are twice as large as those of LaIn 3 .