Abstract

We have used Mössbauer spectroscopy and neutron diffraction to study a series of Y2(Fe1-xMnx)1 4B samples in the composition range from x=0.0 to 0.4. Y 2(Fe0.6Mn0.4)14B is paramagnetic at both room temperature and 85 K. The iron quadrupole splitting in this paramagnetic compound allows us to place an upper limit on the quadrupole shift in the magnetic Y2(Fe1-xMnx) 14B alloys. Refinement of Y2(Fe 1-xMnx)14B neutron diffraction data have been used to give the site occupancies of manganese on the transition-metal sublattice. Both neutron diffraction patterns and Mössbauer effect spectra indicate a marked preference for the manganese to occupy the 8j2 site, which is the largest volume transition-metal site. Both experimental techniques give completely consistent results for the site occupancies in Y 2(Fe1-xMnx)14B.

Department(s)

Physics

Second Department

Chemistry

International Standard Serial Number (ISSN)

0021-8979

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1988 American Institute of Physics Publishing LLC, All rights reserved.

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