Title

Aluminum Site Occupation in Y₂Fe₁₄₋ₓAlₓB

Abstract

Neutron diffraction has been used to study a series of Y₂Fe₁₄₋ₓAlₓB solid solutions with x=0.65, 0.92, 1.30, 1.53, and 1.93. Aluminum atoms are found to occupy the j2 and c sites. the Al site affinity appears to be determined by the steric effect (j2) or crystal environment (c). The c lattice parameter increases as the aluminum content x increases, while the a lattice parameter decreases as the aluminum content x increases. The unit cell volume increases as the aluminum content x increases, at a rate around 3 Å3 per Al atom per formula unit, much lower than observed in the Al substituted 2:17 compound. the average Fe site moment Decreases as the aluminum content x increases due to the reduction of the Fe content.

Department(s)

Physics

Second Department

Chemistry

International Standard Serial Number (ISSN)

0018-9464

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1996 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Share

 
COinS