Structure Sensitive Magnetic Behavior of Degenerate Magnetic Semiconductor

Abstract

Low field ac magnetic susceptibilities have been measured on both as-grown and Zn-annealed Sn_1−xCr_xTe (x=0.01) crystals over the temperature range 1.5–300 K. The as-grown crystal undergoes a paramagnetic-to-ferromagnetic transition at 125 K, whereas the annealed one is ferromagnetic below 300 K and changes further into a spin glass like state below 120 K, indicating the presence of some ferromagnetic clusters which couple antiferromagnetically with each other.