Magnetic and Fermi Surface Properties in NpIn_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

概要

論文の詳細を見る
We succeeded in growing a high-quality single crystal of NpIn_3 by the In-flux method, and measured the electrical resistivity, specific heat, magnetic susceptibility, magnetization and de Haas-van Alphen (dHvA) effect. Ferromagnetic and antiferromagnetic orderings occur at T_C=14K and T_N=10K, respectively, together with another transition at T^*=8K. When the magnetic field is applied to the sample, the antiferromagnetic state is finally changed into a ferromagnetic state with two metamagnetic transitions. The antiferromagnetic ordering and two metamagnetic transitions are found to be of the firstorder phase transition. In the dHvA experiments, we observed three dHvA branches with the cyclotron mass ranging from 3.4 to 14m_0. These dHvA branches are discussed from a viewpoint of the 5f-localized model based on the Fermi surface of LaIn_3.
社団法人日本物理学会の論文
2006-08-15