Abstract
The Hall effect of epitaxial YBa2Cu3O7−x and Bi2Sr2CaCu2O y films has been investigated experimentally and theoretically. In both compounds the normal state Hall coefficient R H (B || c-axis) is positive and exhibits a strong temperature dependence, which is more pronounced in YBa2Cu3O7−x than in Bi2Sr2CaCu2O y . The Hall coefficient R H xyz in the normal phase has been calculated on the basis of a renormalized two-dimensional tight binding model using the relaxation time approximation. Strong correlation effects are accounted for via doping dependent hopping terms leading to band narrowing. The influence of the choice of the relaxation time on the Hall coefficient is explored. The calculations have been performed for a wide range of parameters and are compared to experimental data.
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© 1993 Springer-Verlag Berlin, Heidelberg
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Hopfengärtner, R., Leghissa, M., Kreiselmeyer, G., Holzapfel, B., Schmitt, P., Saemann-Ischenko, G. (1993). Hall Effect of Epitaxial YBa2Cu3O7−x and Bi2Sr2CaCu2O y Films. In: Kuzmany, H., Mehring, M., Fink, J. (eds) Electronic Properties of High-Tc Superconductors. Springer Series in Solid-State Sciences, vol 113. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84865-0_18
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DOI: https://doi.org/10.1007/978-3-642-84865-0_18
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