The Influence of Temperature on the Coercivity and Kerr Rotation for MnBiRE(RE=Ce, Pr, Nd and Sm)Thin Films

Abstract

MnBiRE thin films posess large magneto-optical(MO) Kerr rotation angle θ_k¹⁾. We investigated the influence of temperature on the coercivity H_c and MO Kerr rotation angle θ_k for MnBiRE (RE=Ce, Pr, Nd and Sm) thin films and their writing characteristics. The temperature dependence of H_c and θ_k of MnBiRE thin films as the functions of the temperature are studied. The thermo-magnetic writing was carryied out. The readout and writing chariceristics of the samples are discussed.