Schmidt, V. Hugo2015-04-172015-04-171980-09V.H. Schmidt, “Dielectric observation of a probably antiferroelectric high pressure phase in the ferroelectric tris-sarcosine calcium chloride (TSCC),� Solid State Communications. 35:9, 649-652 (1980)0038-1098https://scholarworks.montana.edu/handle/1/8981Dielectric susceptibility and ferroelectric hysteresis measurements on TSCC show that the 2nd-order paraelectric-ferroelectric (PE-FE) phase boundary beginning at (130.8 K, 1 bar) runs with pronounced curvature to (176.8 K, 5.03 kbar), where a new phase of low dielectric susceptibility appears. This phase is hypothesized to be antiferroelectric (AFE) with 3 possible structures: orthorhombic (P212121, piezoelectric) or monoclinic (P21/a or P21/n, centrosymmetric). The FE-AFE phase boundary was determined down to (81.0 K, 2.60 kbar) and the PE-AFE boundary up to (225.5 K, 6.82 kbar). Both the FE-AFE and PE-AFE transitions are of 1st order over the range studied.ElectromagneticsPhysicsMaterials scienceArticle