Optical Measurements on Magnetite Single Crystals

I. Balberg and J. I. Pankove
Phys. Rev. Lett. 27, 596 – Published 30 August 1971
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Abstract

Optical transmission and reflectance were measured on natural magnetite single crystals in the spectral range 0.15<~hν<~0.75 eV. These measurements below and above the semiconductor-to-metal transition temperature Tv have shown that, unlike for the vanadium oxides, there is no collapse of the optical gap at the transition. The present results and the existing data on the transport properties of magnetite indicate that different bands contribute to the electric conduction above and below Tv.

  • Received 2 June 1971

DOI:https://doi.org/10.1103/PhysRevLett.27.596

©1971 American Physical Society

Authors & Affiliations

I. Balberg and J. I. Pankove

  • RCA Laboratories, Princeton, New Jersey 08540

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Issue

Vol. 27, Iss. 9 — 30 August 1971

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