Affordable Access

deepdyve-link deepdyve-link
Publisher Website

Critical Indices and Amplitudes of Classical Planar Models in Finite Field for Temperatures Greater than Tc

Authors
  • Ferer, M.
  • Moore, M.A.
  • Wortis, Michael
Publication Date
Dec 01, 1973
Identifiers
DOI: 10.1103/PhysRevB.8.5205
OAI: oai:inspirehep.net:88862
Source
INSPIRE-HEP
License
Unknown
External links

Abstract

Using renormalization techniques on the Englert linked-cluster expansion we have derived high-temperature series for the spin-spin correlation function of the three-dimensional, plane-rotator, and spin-infinity XY models with nearest-neighbor interactions. Analysis of our zero-field series, which are two terms longer than earlier series for these models, gives results in basic agreement with earlier work. Our finite-field series, to eighth order in the interaction and second order in the field, allow a determination of the gap index Δ; we assert 2Δ=3.33±0.02. The indices are compared with scaling predictions and experimental results. Accessible critical amplitudes are determined. These are used to test predictions of two-scale-factor universality; good agreement is observed.

Report this publication

Statistics

Seen <100 times