Nonuniversal Critical Behavior along the λ-line of 4He
- 1 January 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (S3-1)
- https://doi.org/10.7567/jjaps.26s3.49
Abstract
An accurate representation of the renormalization-group (RG) β-function of the Ginzburg-Landau Hamiltoian is given. The nonuniversal parameters of the theory are determined from a few data points of the specific heat above Tλ. Application to the specific heat below Tλ and to the Landau-Placzek ratio of scattered light explains the measured nonuniversal temperature and pressure dependence of these quantities without adjustable parameters.Keywords
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