Magnetization and Extraordinary Hall Effect in Ferrimagnetic Compounds Er_<1-x>Y_xFe_2

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Magnetization and extraordinary Hall effect (EKE) were meastured on for-rimagnetic compounds Erz -.Y,Fe. with ,X'=0, 0.32, 0.42, and 0.53>from 77 Kto 650 K (530 K, for F,HE). The magnetization measurements shc>wed almostgood agreement with the work previously reported. F,III, for all the samplesshowed positive sign (hole like) above compensation point 9., a?td generallyshowed sign change at 8., but this change became less clear as Y c<vncentrationincreased.The magnetization was calculated by the molecular field approxinmation whichreproduced fairly well the measurccd ones. Using these data, temperal:ure depend-once of EHE was calculated and compared with the measured ones. TFte agreementbetween them was generally goo<i. From the analysis of the obser'v'ed EHE, itwas shown that the moments of Er and Fe sublattices contributed to the EHEindependently.
社団法人日本物理学会の論文
1980-12-15