Magnetic properties of La(FexAl1-x)13 determined via neutron scattering and Mössbauer spectroscopy

R. B. Helmholdt*, T. T M Palstra, G. J. Nieuwenhuys, J. A. Mydosh, A. M. Van Der Kraan, K. H J Buschow

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

La(FexAl1-x)13 pseudobinary intermetallic compounds, which can be stabilized for 0.46<x<0.92, have been studied by neutron diffraction and Mössbauer spectroscopy. Neutron measurements on an antiferromagnetic x=0.91 sample at 4.2 K reveal a long-range-order antiferromagnetic state, consisting of ferromagnetic clusters, coupled antiferromagnetically. Mössbauer-effect measurements show a drop of the hyperfine field at the Fe nucleus at the ferromagnetic-antiferromagnetic phase boundary x0.88. Both these microscopic measurements indicate a transition from -iron-like ferromagnetism to -iron-like antiferromagnetism due to the extremely high coordination of Fe atoms.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalPhysical Review B
Volume34
Issue number1
DOIs
Publication statusPublished - 1 Jan 1986
Externally publishedYes

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