A neutron diffraction determination of the critical exponent β for the n = 4 system holmium

J. Eckert, G. Shirane

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Abstract

The temperature dependence of the order parameter associated with the magnetic phase transition in Ho near 131 K has been measured by neutron diffraction. The results show a power law behavior for the order parameter with an exponent of β = 0.39 (+0.04, -0.03) for the reduced temperature range 0.007 ≤ ε{lunate} ≤ 0.3. This value is in agreement with recent predictions for an n = 4 vector model studied in the renormalization group technique.

Original languageEnglish
Pages (from-to)911-912
Number of pages2
JournalSolid State Communications
Volume19
Issue number9
DOIs
StatePublished - Aug 1976

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