Title

Magnetic and Mössbauer Spectral Properties of the Compound Nd₆Fe₁₃Au

Abstract

The magnetic properties of Nd6Fe13Au were studied by means of magnetic measurements and iron-57 Mössbauer spectroscopy. It is shown that magnetic ordering of the Fe moments occurs at temperatures much above room temperature (TN = 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 Mössbauer 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 Mössbauer spectra due to the ordered magnetic component decreases gradually as it is replaced by a quadrupole doublet.

Department(s)

Chemistry

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1996 Elsevier, All rights reserved.


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