"Neutron Diffraction Studies of NdₙFeₘ₋ₓ₋<sub>y</sub>VₓAl<sub>y</sub> [" by Z. Hu, William B. Yelon et al.
 

Abstract

Several NdnFem-x-yVxAly [(n,m)=(1,12), (2,17), (3,29)] samples were prepared and analyzed using neutron powder diffraction. Rietveld analysis of the neutron diffraction data indicates that the V and Al substituents take those sites with similar environments in all three phases, as observed in our previous study of Ti-substituted compounds. It was confirmed that the diffraction data of the 3:29 compound can be better refined using the A2/m space group than using the P21/c space group. The SQUID measurements show that all samples have Curie temperatures well above room temperature. The neutron diffraction results show that the easy direction is along the a axis for the 3:29 compounds, along the c axis for the 1:12 compounds and in the a-b plane for 2:17 compounds, respectively. The average site magnetic moments, the metal-metal bond lengths and the unit cell parameters of these compounds are compared with those of the Ti-substituted compounds.

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

© 1996 American Institute of Physics (AIP), All rights reserved.

Publication Date

15 Apr 1996

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