Abstract
The transverse correlation range ξ and the susceptibility in the critical region has been measured by neutron scattering. A special technique required to resolve the superdiverging longitudinal correlation range has been utilized. The results for ξ together with existing specific-heat data are in remarkable agreement with the renormalization group theory of systems with marginal dimensionality. The ratio between the susceptibility amplitudes above and below Tc was found to be 2 in accordance with renormalization-group and meanfield theory.
Original language | English |
---|---|
Journal | Physical Review Letters |
Volume | 37 |
Issue number | 17 |
Pages (from-to) | 1161-1164 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 1976 |