Quasiparticle thermal Hall angle and magnetoconductance in YBa₂Cu₃O_x

1999/04/30 by K. Krishana, N. P. Ong, Y. Zhang +3 · 1 citation
Physics and Astronomy · #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.82.5108

published as Phys. Rev. Lett. 82, 5108 (1999) · 4 pages in Tex, 5 figures in EPS; replaced on 5/12/99, minor changes

arxiv created 1999/05/13 · arxiv updated 2009/11/30

Abstract

We present a way to extract the quasiparticle (qp) thermal conductivity Kappa_e and mean-free-path in YBa₂Cu₃O_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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