Observation of the Halperin-Lubensky-Ma effect in a liquid crystal
Anisimov M. A. , Voronov V. P. , Gorodetskii E. E. , Podnek V. E. , Kholmurodov F.
Experiments reveal a nonlinear behavior of the heat of the nematic-smectic A phase transition because of a screening of transverse fluctuations of the nematic director in the A phase.