New phase-transformation line and intermediate phase in Sn/sub 2/P/sub 2/S/sub 6/

Journal Article · Sat Mar 01 00:00:00 EST 1986 · Sov. Phys. J. (Engl. Transl.); (United States)

OSTI ID:7153483

Tyagor, Y I; Gerzanich, E I; Slivka, A G

This paper studies the effect of temperature and hydrostatic pressure on the permittivity, forbidden-band width, electrical conductivity, and photoconductivity of crystals of Sn/sub 2/P/sub 2/S/sub 6/. The empirical results obtained indicate that a new phase-transformation line exists on the p-T diagram of Sn/sub 2/P/sub 2/S/sub 6/ p > 0.17 GPa. This phase transformation is a second-order transition, separating a paraelectric proportionate phase from an intermediate, possibly nonproportionate phase. The results also indicate similarity of the p-T diagram of Sn/sub 2/P/sub 2/S/sub 6/ to the x-T diagrams of ferroelectric solid solutions of sn/sub 2/P/sub 2/(Se /SUB x/ S /SUB 1-x/ )6.

• Research Organization: Uzhgorod Univ.
• OSTI ID: 7153483
• Journal Information: Sov. Phys. J. (Engl. Transl.); (United States), Vol. 28:9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TIN PHOSPHIDES
CRYSTAL-PHASE TRANSFORMATIONS
TIN SULFIDES
ELECTRIC CONDUCTIVITY
ENERGY LEVELS
PERMITTIVITY
PHASE DIAGRAMS
PHOTOCONDUCTIVITY
PRESSURE EFFECTS
TEMPERATURE EFFECTS
CHALCOGENIDES
DIAGRAMS
ELECTRICAL PROPERTIES
PHASE TRANSFORMATIONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
SULFIDES
SULFUR COMPOUNDS
TIN COMPOUNDS
360602* - Other Materials- Structure & Phase Studies
360603 - Materials- Properties