Dielectric function and optical conductivity of TiOx (0.8<x<1.3) determined from electron energy-loss spectroscopy

Shubha Gokhale, S. R. Barman, and D. D. Sarma
Phys. Rev. B 52, 14526 – Published 15 November 1995
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Abstract

Reflection electron energy-loss spectra are reported for the family of compounds TiOx over the entire homogeneity range (0.8<x<1.3). The spectra exhibit a plasmon feature on the low-energy side, while several interband transitions are prominent at higher energies. The real and imaginary parts of dielectric functions and optical conductivity for these compounds are determined using the Kramers-Kronig analysis. The results exhibit systematic behavior with varying oxygen stoichiometry.

  • Received 22 June 1995

DOI:https://doi.org/10.1103/PhysRevB.52.14526

©1995 American Physical Society

Authors & Affiliations

Shubha Gokhale

  • Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
  • Jawaharlal Nehru Centre for Advanced Scientific Research, Indian Institute of Science, Bangalore 560 012, India

S. R. Barman

  • Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India

D. D. Sarma

  • Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
  • Jawaharlal Nehru Centre for Advanced Scientific Research, Indian Institute of Science, Bangalore 560 012, India

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Vol. 52, Iss. 20 — 15 November 1995

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