Pregled bibliografske jedinice broj: 920828
Two-point dc ionic conductivity measurements in the superionic phase of Cu2−xSe
Two-point dc ionic conductivity measurements in the superionic phase of Cu2−xSe // Solid state ionics, 34 (1989), 1/2; 21-24 doi:10.1016/0167-2738(89)90425-6 (međunarodna recenzija, članak, znanstveni)
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Naslov
Two-point dc ionic conductivity measurements in the superionic phase of Cu2−xSe
Autori
Horvatić, Mladen ; Aviani, Ivica ; Ilić, Marjan
Izvornik
Solid state ionics (0167-2738) 34
(1989), 1/2;
21-24
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
superionic conductor ; copper selenide ; ionic conductivity
Sažetak
Abstract dc ionic conductivity (σi) of the mixed superionic conductor Cu2−xSe, with 0.01≤x≤0.26, is measured in the temperature range from 160 to 250 C. The new two-point measuring method is presented ; the experimental set-up is simplified and very small samples can be treated, which strongly increases the speed of the measurements. The temperature dependence of σi is found to be Arrhenius, with only weakly concentration- dependent activation energy A= 125±5 meV. For compositions x ≳ 0.1, the concentration dependence of σi is linear, σi∝(1 − 1.3x). As x is decreased from 0.1 to zero, σi is nonlinearly enhanced, which confirms the importance of ionic correlations in the mechanism of superionic conduction.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Institut za fiziku, Zagreb,
Sveučilište u Zagrebu
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Scopus
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