M. Sougoti et C. Ecolivet, DIRECT OBSERVATION OF DOMAINS IN THE LOW-TEMPERATURE PHASE OF P-TERPHENYL, Solid state communications, 103(12), 1997, pp. 699-702
For the first time ferroelastic domains are observed in the low temper
ature phase of p-terphenyl. These domains are only distinguishable in
very thin crystals of a few micrometers. Plane boundaries are found pe
rpendicular to the two-fold axis. Birefringence measurements are compa
tible with the order parameter temperature dependence as determined by
superstructure intensities. (C) 1997 Elsevier Science Ltd.