Title

A Neutron Diffraction and Mössbauer Effect Study of the Nd₂Fe₁₇₋ₓSiₓ Solid Solutions

Abstract

The substitution of silicon for iron in Nd2Fe17 strongly raises the Curie temperature but leads to a reduction in the unit cell volume. Refinement of the neutron-diffraction pattern for Nd2Fe12.91Si4.09 indicates that silicon preferentially occupies the 18h site in the Nd2Fe17 structure, the site with the most neodymium near neighbors. This occupation is surprising because conventional arguments would suggest that replacement of iron on the 6c site, which has a very short iron to near-neighbor iron bond length, would yield an increase in the Curie temperature. © 1993.

Department(s)

Chemistry

Second Department

Physics

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1993 Elsevier, All rights reserved.


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