Physical properties and anisotropies of the RNiGe3 series (R = Y, Ce–Nd, Sm, Gd–Lu)

摘要: Abstract We have studied R NiGe 3 ( =Y, Ce–Nd, Sm, Gd–Lu) single crystals by measuring crystal structure and stoichiometry, magnetic susceptibility, magnetization, electrical resistivity, magnetoresistance, specific heat. Clear anisotropies as well antiferromagnetic ordering in the series =Ce–Nd, Gd–Tm) been observed above 1.8 K from susceptibility. A metamagnetic transition this family (except for =Sm) was detected at 2 K applied fields below 70 kOe. The resistivity of follows metallic behavior high temperature region. Below a significant anisotropy is exhibited magnetoresistance different current directions. anisotropic magnetic, transport, thermal properties compounds are discussed terms Ni site occupancy combination effect formation superzone gap crystalline electric field.