Magnetocrystalline Anisotropy of Ni-Rh Alloys

The magnetocrystalline anisotropy energy and magnetoresistance anisotropy of Ni-Rh alloys containing 0∼33 at%Rh have been studied in the temperature range from 4.2 K to 300 K. The anisotropy energy at 4.2 K varies drastically accompaning a change in sign at about 3 at%Rh and shows a maximum at about 6 at%Rh. The magnetoresistance anisotropy at 4.2 K has the small value, and a change in sign around the same Rh concentration as the magnetocrystalline anisotropy at 4.2 K.