Concentration and temperature dependence of the thermal expansion coefficient in the superionic phase of Cu2-xSe

Aviani, Ivica; Vučić, Zlatko; Horvatić, Mladen; Gladić, Jadranko

doi:10.1016/0038-1098(87)90633-8

Pregled bibliografske jedinice broj: 713992

Concentration and temperature dependence of the thermal expansion coefficient in the superionic phase of Cu2-xSe

Aviani, Ivica; Vučić, Zlatko; Horvatić, Mladen; Gladić, Jadranko

Concentration and temperature dependence of the thermal expansion coefficient in the superionic phase of Cu2-xSe // Solid state communications, 64 (1987), 10; 1317-1319 doi:10.1016/0038-1098(87)90633-8 (međunarodna recenzija, kratko priopcenje, znanstveni)

CROSBI ID: 713992 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Concentration and temperature dependence of the thermal expansion coefficient in the superionic phase of Cu2-xSe

Autori
Aviani, Ivica ; Vučić, Zlatko ; Horvatić, Mladen ; Gladić, Jadranko

Izvornik
Solid state communications (0038-1098) 64 (1987), 10; 1317-1319

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, kratko priopcenje, znanstveni

Ključne riječi
superionic conductor ; copper selenide ; thermal expansion coefficient

Sažetak
Thermal expansion coefficient β of the Cu2−xSe sample with 1.975 >= 2 − x >= 1.801 is measured in the temperature interval from 300 to 570 K. In the high-temperature phase the data are well fitted by the expression β =P1+P2/T^2 where P1 is weakly and P2 strongly dependent on x. In a simple configurational model the lattice parameter is increased only by those configurations where Cu vacancies (introduced by the deviation from stoichiometry x) are nearest neighbours. The model reproduces the temperature and qualitatively also the concentration dependence of β.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Ustanove:
Institut za fiziku, Zagreb

Profili:

Mladen Horvatić (autor)