Magnetic and Mossbauer spectral properties of the compound Nd6Fe13Au

JOURNAL OF ALLOYS AND COMPOUNDS

卷:233

Article

deGroot, CH ; deBoer, FR ; Buschow, KHJ ; Hautot, D ; Long, GJ ; Grandjean, F

关键词: ternary rare earth compounds;    Nd6Fe13Au;    magnetic properties;    Mossbauer spectroscopy;   

DOI  :  10.1016/0925-8388(95)02007-1

来源: Elsevier

【 摘 要 】

The magnetic properties of Nd(6)Fe13An were studied by means of magnetic measurements and iron-57 Mossbauer spectroscopy. It is shown that magnetic ordering of the Fe moments occurs at temperatures much above room temperature (T-N = 408 K). At low temperatures, the net moment of Nd6Fe13Au is very small owing to mutual compensation of the contributions of the various magnetic sublattices involved. High-field measurements made at 4.2 K show that ferromagnetic alignment of the sublattice moments is reached in two steps via first-order magnetic phase transitions. The Mossbauer spectra reveal that the Zeeman splitting gradually decreases with increasing temperature and that the average hyperfine field is zero at 435 K and above. Between 325 K and 411 K the area in the Mossbauer spectra due to the ordered magnetic component decreases gradually as it is replaced by a quadrupole doublet.

【 授权许可】

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