Hopping Conductivity in (Zn,Fe)Se Intentionally Doped with Ag

• Authors: A. Zaręba , M. Demianiuk
• Languages of publication: EN

Abstracts

EN

The transport phenomena in (Zn,Fe)Se were studied. In order to obtain iron centers in Fe^{3+} charge state the crystals were doped by Ag what produces acceptors compensating Fe^{2+} donors. The results are explained in terms of thermally activated jumping of charges between Fe^{3+} and Fe^{2+} centers. The nature of activation energy is discussed. The polaron model seems to be not valid in our case. The Coulomb interaction between charged acceptors and "holes" on iron centers is considered as the origin of thermal activation of jumps. We suggest the deviation from random and mutually independent distributions of charged Ag acceptors and Fe^{3+} ions resulting from the electrostatic interactions between them at high temperatures.

Keywords

EN

71.55.Gs; 72.80.Ey

Discipline

• 72.80.Ey: III-V and II-VI semiconductors
• 71.55.Gs: II-VI semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1992
• Volume: 82
• Issue: 5
• Pages: 749-752

Dates

published

1992-11

Contributors

author

A. Zaręba

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

M. Demianiuk

• Institute of Technical Physics, WAT, Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.82.749