PHASE-TRANSITIONS IN (NH(CH3)(3))(2)ZNCL4 FERROELECTRIC-CRYSTALS

Authors
KAPUSTIANIK V SVELEBA S VAIDANICH V MOKRYI V POLOVINKO I DACKO S
Citation
V. Kapustianik et al., PHASE-TRANSITIONS IN (NH(CH3)(3))(2)ZNCL4 FERROELECTRIC-CRYSTALS, Ferroelectrics, 192(1-4), 1997, pp. 121-127
Citations number
14
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
192
Issue
1-4
Year of publication
1997
Pages
121 - 127
Database
ISI
SICI code
0015-0193(1997)192:1-4<121:PI(F>2.0.ZU;2-E
Abstract
The single crystals of (NH(CH3)(3))(2)ZnCl4 (abbreviately (TrMA)(2)ZnC l4) were grown at room temperature. On the basis Of obtained experimen tal results one can conclude that crystals of trimethylammoniumtetrach lorozincates possess two phase transitions at T-c(c) = 276.5 K and T-i = 310 K. Phase lying below T-c is ferroelectric one. Some specific pr operties of (TrMA)(2)ZnCl4 in the phase lying between T-c and T-i, all ow to suggest the existence of incommensurate phase in this range.