Some electrical properties of fahlore Cu10(Zn,Fe)2(As,Sb)4S13 |
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Authors: | N Mozgova V Miku?ionis V I Valiukenas A Tsepin A Orliukas |
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Institution: | 1. Academy of Sciences of the USSR, IGEM, 109017, Moscow, USSR 2. Vilnius V. Kapsukas State University, 232734, Vilnius, USSR
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Abstract: | Natural Zn-tennantite Cu10.10Ag0.04(Zn1.29-Fe0.67)1.96(As3.04Sb0.89)3.93S12.98 from Beresovskoe, Urals, behaves as an ordinary semiconductor in the temperature range 300–400 K and frequency range 108–2.8·1010 Hz, and no ionic component conductivity is observed. This contrasts with the behaviour of synthetic tetrahedrites (both Cu-rich and Cu-poor) which are solid electrolytes. These results can be related to the number of vacancies per formula unit and the substitution scheme for the divalent metals in fahlore. |
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