57Fe M$\ddot{\rm O}$SSBAUER STUDY ON (NdDy)TiFe11Ny COMPOUNDS
CAO LEI (曹蕾)a, KONG LIN-SHU (孔麟书)a, SHEN BAO-GEN (沈保根)a, ZHAO JIAN-CAO (赵见高)a, GONG HUA-YANG (宫华扬)b, CHEN YI-LONG (陈义龙)b
a State Key Laboratory of Magnetism, Institute of Physics, Academia Sinica, Beijing 100080, China; b Department of Physics, Wuhan University, Wuhan 430072, China
Abstract57Fe M$\ddot{o}$ssbauer spectra have been obtained at room temperature for (NdDy)TiFe11, and at 11 K and room temperature for the corresponding nitrides (NdDy)TiFe11Ny. The magnetic behaviors of Fe atoms at different sites have been studied. We have found a larger increase of the hyperfine fields upon nitrogenation due to the higher nitrogen content in these compounds and got a bigger enhancement of the isomer shift in 8j site because of the nearest nitrogen environment.
Received: 10 November 1992
Accepted manuscript online:
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