Light Scattering Studies of the Two-Dimensional Phase Transition in Squaric Acid
- 226 Downloads
Crystalline squaric acid, H2C4O4, has attracted considerable interest among physicists due to its simple planar geometry  and the existence of a structural phase transition at about 100 C . Since proton ordering in hydrogen “bonds seems to play a key role in the phase change, it was soon realized that one had at hand a material which might show interesting two-dimensional Ising-type behaviour . Information gained from birefringence studies  and neutron scattering  did in fact support such a view.
Unable to display preview. Download preview PDF.