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Bulletin of Materials Science

, Volume 6, Issue 1, pp 53–57 | Cite as

Electron transport in non-crystalline garnet films

  • D Bahadur
  • D Roy
  • B Singh
  • D Saran
Article

Abstract

Thin films of yttrium iron garnet (yig) and Gd-substitutedyig of different thickness have been prepared by flash evaporation. The surfacedc andac electrical resistivity and thermopower in these films have been studied. The results are explained on the basis of Mott and Davis model in which narrow tails of localised states exist at the extreme valence and conduction bands and a band of localised levels near the middle of the gap. For the temperature range studied, the main conduction mechanism is on account of excitation of carriers into localised states at the band edges and hopping at energies close to the band tails.

Keywords

Thin films non-crystalline garnet electron transport activation energy 

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Copyright information

© Indian Academy of Sciences 1984

Authors and Affiliations

  • D Bahadur
    • 1
  • D Roy
    • 1
  • B Singh
    • 1
    • 2
  • D Saran
    • 1
    • 2
  1. 1.Advanced Centre for Materials ScienceIndian Institute of TechnologyKanpurIndia
  2. 2.Department of PhysicsIndian Institute of TechnologyKanpurIndia

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