High-Resolution Neutron Powder Diffraction Study of Dy2Fe9Al8 at 65K

S. Ridwan; H. Mujamilah; M. Gunawan; P. Marsongkohadi; Q. W. Yan; P. L. Zhang; X. D. Sun; Z. H. Cheng; Nobuaki Minakawa; Yoshikazu Hamaguchi

doi:10.1143/jpsj.65.348

High-Resolution Neutron Powder Diffraction Study of Dy₂Fe₉Al₈ at 65K

S. Ridwan, H. Mujamilah, M. Gunawan, P. Marsongkohadi, Q. W. Yan, P. L. Zhang, X. D. Sun, Z. H. Cheng, Nobuaki Minakawa, Yoshikazu Hamaguchi

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Keywords: neutron diffraction, powder, Dy--Fe--Al alloy, magnetic structure, Rietveld refinement

JOURNAL RESTRICTED ACCESS

1996 Volume 65 Issue 2 Pages 348-350

DOI https://doi.org/10.1143/jpsj.65.348

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Abstract

High-resolution neutron powder diffraction study of Dy₂Fe₉Al₈ has been carried out at 65K. The crystallographic parameters and magnetic moments were determined by Rietveld profile fitting calculation. The results showed that Dy₂Fe₉Al₈ crystallized in the rhombohedral Th₂Zn₁₇ type structure. The aluminum atoms were distributed randomly at positions 18f, 18h and 6c. The magnetic moments of all iron atoms were parallel to the six-fold axis and couple antiferromagnetically to the moment of Dy.

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