Magnetization and Giant Magnetoresistance of Polycrystalline TbSb at Low Temperatures

Resumo

Dependences of the magnetization M and the resistance R on the temperature T in the range from 2 to 300 K and on the magnetic field H up to 14 T were investigated in polycrystalline samples of terbium antimonide TbSb. A peculiarity (bending) was observed on the M(H) dependences at each temperature below the transition point of TbSb into the antiferromagnetic phase (T_N = 14.8 K), which is due to a metamagnetic phase transition. Positive giant magnetoresistance was found in TbSb near the antiferromagnetic phase region.