Magnetization and giant magnetoresistance of TbSb polycrystals at low temperatures

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 ($T_{\mathrm{N}}$ = 14.8 K), which is due to a metamagnetic phase transition. Positive giant magnetoresistance was found in TbSb near the antiferromagnetic phase region.