X-ray Study of Ferroelectric Phase Transition in (NH(CH3)3)3Sb2Cl9 |
| P.E. Tomaszewski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 937, 50-950 Wrocław 2, Poland |
| Received: September 13, 1994; in final form: November 28, 1994 |
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| The lattice parameters of a title crystal, TMACA, were measured from a room temperature to 405 K by the X-ray single-crystal Bond method. The high-temperature paraelectric phase should have the monoclinic symmetry (space group P2/c). Some peculiarities on dielectric behaviour of the crystal were explained. The hypotheses on incommensurability of the paraelectric phase as well as on the parent normal (trigonal) phase were presented. |
| DOI: 10.12693/APhysPolA.87.631 PACS numbers: 61.50.Ks, 64.70.Kb, 65.70.+y, 77.80.Bh |