Ac conductivity of Ag-doped bulk,glassy As2S3 |
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Authors: | PL Sherrell JC Thompson |
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Institution: | The University of Texas at Austin, Austin, Texas 78712, USA |
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Abstract: | Measurements of the electrical conductivity of Ag-doped bulk As2S3 glasses have been made as functions of temperature, pressure, frequency and Ag doping level. A Debye-like loss peak was observed near 104 Hz. The frequency of the loss peak is dependent on temperature, pressure and doping level, but these dependences are different from those of the dc conductivity. The ac loss is attributed to the Maxwell-Wagner losses characteristic of inhomogeneous materials. The materials are presumed to be inhomogeneous mixtures of As2S3 and Ag2S. We have also searched unsuccessfully for ac conductance in several bulk chalcogenide glasses. |
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