Pregled bibliografske jedinice broj: 388809
Structural variants in the low-temperature beta phase of stoichiometric cuprous selenide
Structural variants in the low-temperature beta phase of stoichiometric cuprous selenide // Journal of Solid State Chemistry, 91 (1991), 2; 213-224 doi:10.1016/0022-4596(91)90076-T (međunarodna recenzija, članak, znanstveni)
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Naslov
Structural variants in the low-temperature beta phase of stoichiometric cuprous selenide
Autori
Gladić, Jadranko ; Milat, Ognjen ; Vučić, Zlatko ; Horvatić, Vlasta
Izvornik
Journal of Solid State Chemistry (0022-4596) 91
(1991), 2;
213-224
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
copper selenide; structural variants
Sažetak
Symmetry lowering from Td2(f43m) to C3s (Cm) at alfa -> beta first-order phase transition of the superionic conductor Cu2Se is described by two nonequivalent wave vectors: kR=[2pi/ac](111/222) and km=[2pi/ac]((11/33) 0 Four orientation variants of the rhombohedrally deformed cage sublattice are equally probable equilibrium structures which correspond to four rays in the star of kR. Such twinning was observed using a microfurnace built for the Weissenberg goniometer. Three monoclinic beta-phase structure variants displaying together pseudorhombohedral symmetry can couple to each body cube diagonal as a cage distortion direction, giving a total of 12— the number of rays in the star of km.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
