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Quasiparticle thermal Hall angle and magnetoconductance in YBa_2Cu_3O_x

K. Krishana·N. P. Ong·Y. Zhang·Z. A. Xu·R. Gagnon·L. Taillefer
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Abstract

We present a way to extract the quasiparticle (qp) thermal conductivity Kappa_e and mean-free-path in YBa_2Cu_3O_x, using the thermal Hall effect and the magnetoconductance of Kappa_e. The results are very consistent with heat capacity experiments. Moreover, we find a simple relation between the thermal Hall angle Theta_Q and the H-dependence of Kappa_e, as well as numerical equality between Theta_Q and the electrical Hall angle. The findings also reveal an anomalously anisotropic scattering process in the normal state.

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K. Krishana, N. P. Ong, Y. Zhang, Z. A. Xu, R. Gagnon, L. Taillefer. 1999-05-13. Quasiparticle thermal Hall angle and magnetoconductance in YBa_2Cu_3O_x. https://doi.org/10.1103/physrevlett.82.5108

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