Anomalous properties of heavily Fe-doped CdTe crystals

P. Fochouk; R. Fesh; A. Savitskiy; R. Ivanchouk

doi:10.1117/12.280732

14 July 1997 Anomalous properties of heavily Fe-doped CdTe crystals

P. Fochouk, R. Fesh, A. Savitskiy, R. Ivanchouk

Proceedings Volume 3178, Solid State Crystals: Growth and Characterization; (1997) https://doi.org/10.1117/12.280732
Event: XII Conference on Solid State Crystals: Materials Science and Applications, 1996, Zakopane, Poland

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 C_Fe 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 P_Cd 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.

Citation Download Citation

P. Fochouk, R. Fesh, A. Savitskiy, and R. Ivanchouk "Anomalous properties of heavily Fe-doped CdTe crystals", Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); https://doi.org/10.1117/12.280732

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