Magnetic Phase Transition near a Lifshitz Point: A Neutron Study of UAs

Peculiar rodlike diffuse critical scattering above the type-I antiferromagnetic (AF/I) phase transition has been observed in the actinide compound UAs and demonstrates that the transition is in the vicinity of a Lifshitz point. A mean-field theory is proposed based on an anisotropic Hamiltonian and...

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Bibliographic Details
Published in:Physical review letters 1980-01, Vol.45 (12), p.1028-1031
Main Authors: Sinha, S. K., Lander, G. H., Shapiro, S. M., Vogt, O.
Format: Article
Language:English
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Summary:Peculiar rodlike diffuse critical scattering above the type-I antiferromagnetic (AF/I) phase transition has been observed in the actinide compound UAs and demonstrates that the transition is in the vicinity of a Lifshitz point. A mean-field theory is proposed based on an anisotropic Hamiltonian and provides a reasonable description of the results.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.45.1028