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Proceedings Paper

Anomalous properties of heavily Fe-doped CdTe crystals
Author(s): P. Fochouk; R. Fesh; A. Savitskiy; R. Ivanchouk
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Paper Abstract

Diffusion and solubility of Fe in Bridgman grown CdTe crystals were studied by the radiotracer method (55Fe+59Fe) in the 800 - 1270 K temperature range at different Cd vapor pressures. Fe 'supersolubility' phenomenon was fixed at long annealing. Electrical and magnetic properties measurements on crystals with CFe approximately equals 1018 minus 1020 at/cm3 were performed. High-temperature (850 - 1100 K) Hall-effect measurements didn't reveal increased electron concentrations in comparison with undoped CdTe. Thermal annealing of some samples under high PCd leads to high resistivity of inner parts of the sample ((rho) approximately equals 1010 (Omega) X cm) at 300 K. The measured magnetic susceptibility temperature dependencies and its anisotropy are discussed in the framework of different dopant states in the CdTe lattice.

Paper Details

Date Published: 14 July 1997
PDF: 4 pages
Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); doi: 10.1117/12.280732
Show Author Affiliations
P. Fochouk, State Univ. of Chernivtsi (Ukraine)
R. Fesh, State Univ. of Chernivtsi (Ukraine)
A. Savitskiy, State Univ. of Chernivtsi (Ukraine)
R. Ivanchouk, State Univ. of Chernivtsi (Ukraine)

Published in SPIE Proceedings Vol. 3178:
Solid State Crystals: Growth and Characterization
Jozef Zmija; Andrzej Majchrowski; Jaroslaw Rutkowski; Jerzy Zielinski, Editor(s)

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