Incoherent neutron spectroscopic study of the phase transition of squaric acid
- 1 October 1981
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 39 (1), 1025-1027
- https://doi.org/10.1080/00150198108219548
Abstract
Incoherent scattering of neutrons from the protons of squaric acid H2C4O4 has been studied and shows a remarkable directional dependence of both the elastic and the inelastic component. The observed spectra can be accounted for by a double well potential model for the proton in the hydrogen bond. However, asymmetric population of the well persists into the high temperature tetragonal phase, in agreement with previous suggestions.Keywords
This publication has 5 references indexed in Scilit:
- The Structural Phase Transition and Dielectric Properties of Squaric AcidPublished by Elsevier ,1980
- The phase transition of two-dimensional squaric acid H2C4O4studied by Raman scatteringJournal of Physics C: Solid State Physics, 1979
- The molecular and crystal structure of squaric acid (3,4-dihydroxy-3-cyclobutene-1,2-dione) at 121 °C: A neutron diffraction studyThe Journal of Chemical Physics, 1977
- The phase transition of two-dimensional squaric acid H2C4O4 studied by neutron scatteringJournal of Physics and Chemistry of Solids, 1977
- Neutron measurements on the hydrogen bond potential in paraelectric KDPPhysica Status Solidi (b), 1970