The magnetism of Sm1-xGdxAl2 at low temperatures

The resistance and magnetic susceptibility of Sm1-x Gd-x Al-2 with x = 0.0098, 0.019 and 0.03 have been studied at low temperatures. Spin moments and orbital moments couple antiparallelly in this material. The compensation temperature at which the spin moments are equal to orbital ones is observed, and it decreases with increasing x. The spin-orbit flip has been found in a strong field.