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Distribution of surface states based on Hill and Coleman conductance technique

  • Solid State Physics
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Abstract

Hill-Coleman’s single frequency conductance technique for the determination of surface state density has been extended upto 2 kHz. A.c. conductance (G m) and capacitance (C m)versus gate bias (V G) curves were obtained at various signal frequencies. Shift of the observed peaks in theG m versus VG curves for different signal frequencies was utilized for the determination of surface state density at different surface potentials (φ s). Determination of surface state density for differentφ s values was also done by Nicollian-Goetzberger method and the results compared. Results obtained by Hill-Coleman technique compare reasonably well with those obtained by the other method.

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Singh, R.J., Srivastava, R.S. Distribution of surface states based on Hill and Coleman conductance technique. Pramana - J. Phys. 18, 137–143 (1982). https://doi.org/10.1007/BF02847983

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  • DOI: https://doi.org/10.1007/BF02847983

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