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X-ray study of phase transitions in CS3Sb2I9 crystal / B. S. Bagautdinov [et al.] // Solid State Commun. - 1999. - Vol. 111, Is. 7. - P. 361-366, DOI 10.1016/S0038-1098(99)00217-3. - Cited References: 4
. - ISSN 0038-1098РУБ Physics, Condensed Matter
Рубрики:
CS3BI2I9
Кл.слова (ненормированные):
ferroelectrics -- X-ray scattering -- phase transitions -- Crystal growth -- Ferroelectric materials -- Phase transitions -- Single crystals -- Thermal effects -- X ray scattering -- Trigonal symmetry -- Cesium compounds
Аннотация: An X-ray study of three phase transitions (PTs) at 86, 78 and 72 K has been carried out for the trigonal modification of the Cs3Sb2I9 crystal (space group P-3m1, a = 8.460 Angstrom, c = 10.398 Angstrom). The T-c1 = 86 K PT preserves the trigonal symmetry and is associated with the doubling of the c-parameter. At T-c2 = 72 K a doubling of a and b is observed. An intermediate incommensurate phase with q(1) = 1/2c*, q(2) = (1/2 - delta)a* + 1/2c* has been detected in the temperature range of 78-72 K. The lock-in PT at 72 K has a first order character. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
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Держатели документа:
Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia
Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Helsinki, FIN-00014 Helsinki, Finland
Univ Lausanne, Inst Christallog, CH-1015 Lausanne, Switzerland
ИФ СО РАН
Institute of Solid State Physics, RAS, 142432, Chernogolovka, Russian Federation
Institute of Crystallography, Russ. Acad. Sci., Leninski P., Moscow, Russian Federation
L.V. Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation
University of Helsinki, FIN-00014, Helsinki, Finland
Universite de Lausanne, Institut de Christallographie, 1015, Lausanne-Dorigny, Switzerland
Доп.точки доступа:
Bagautdinov, B. S.; Novikova, M. S.; Aleksandrova, I. P.; Александрова, Инга Петровна; Blomberg, M. K.; Chapuis, G.
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