Published May 1991 | Version v1
Journal article Metadata-only

Atomic structure and phase transitions in Cs5H3(SeO4)4xH2O - new crystals with high ionic conductivity

Creators

  • 1. AN SSSR, Moscow (Russian Federation). Inst. Kristallografii

Description

The results of measurements of permittivity and conductivity in Cs5H3(SeO4)4xH2O crystals in 100-380 K temperature range and 30 rHz - 1 MHz frequency range are given. It is shown that at T = 345 K there occurs a structural ferroelastyic phase transition of the first kind. The elementary cell parameters are determined by X-ray analysis for the ferroelastic phase at room temperature, namely: a = 29.986 (5), b = 12.770 (3), c = 11.259 (4) A, V = 4311 A3, D2h14 = Pbcn, Z = 8 and for the paraelastic phase at T = 360 K: a = 6.400 (3), c = 30.03 (1) A, V = 1065 A3, D6h = P63/mmc, Z = 2. The atomic structure of the ferroelastic rhombic phase is decoded

Additional details

Additional titles

Original title (Russian)
Атомная структура и фазовые переходы в Cс

Publishing Information

Journal Title
Kristallografiya
Journal Volume
36
Journal Issue
3
Journal Page Range
p. 584-590.
ISSN
0023-4761
CODEN
KRISAJ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
24031942
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CESIUM COMPOUNDS; CRYSTAL LATTICES; CRYSTAL-PHASE TRANSFORMATIONS; HYDRATES; HYDROGEN COMPOUNDS; INTERATOMIC DISTANCES; IONIC CONDUCTIVITY; KHZ RANGE; LATTICE PARAMETERS; MONOCRYSTALS; PERMITTIVITY; PROTONS; SELENATES; SPACE GROUPS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
ALKALI METAL COMPOUNDS; BARYONS; CATIONS; CHARGED PARTICLES; CRYSTAL STRUCTURE; CRYSTALS; DIELECTRIC PROPERTIES; DISTANCE; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; FERMIONS; FREQUENCY RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; IONS; NUCLEONS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; SELENIUM COMPOUNDS; SYMMETRY GROUPS; TEMPERATURE RANGE