Thermopower and Electrical Transport in Ag<sub>2-δ</sub>Te under Magnetic Field
ORAL
Abstract
We investigate the magnetotransport and thermopower properties in a series of the silver deficient semiconductors Ag2-δTe (δ = 0, 2×10-4, and 7×10-4). We find that the non-trivial field dependences of both the longitudinal and transverse thermoelectric coefficients are sufficiently described by simple expressions that are parameterized with the tangent of the hall angle, defined as tan θH ≡ ρxy/ρxx. While our model is based on the semiclassical transport theory for a single band, it captures intertwined transport characteristics in an explicit manner. We expect our model to have broad applicability in understanding thermoelectric responses as well as electrical transport under high magnetic field in other semimetals and semiconductors.
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Presenters
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Ian Leahy
Department of Physics, University of Colorado, Boulder, University of Colorado, Boulder
Authors
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Ian Leahy
Department of Physics, University of Colorado, Boulder, University of Colorado, Boulder
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Peter Siegfried
Department of Physics, University of Colorado, Boulder, Physics and Astronomy, George Mason University, Physics, George Mason University
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Harold Schnyders
Department of Physics, Grand Valley State University
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Anke Husmann
Department of Materials Science and Metallurgy, University of Cambridge
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Minhyea Lee
University of Colorado, Boulder, Department of Physics, University of Colorado, Boulder