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.
@article{arxiv.cond-mat/9904138,
title = {Quasiparticle thermal Hall angle and magnetoconductance in YBa_2Cu_3O_x},
author = {K. Krishana and N. P. Ong and Y. Zhang and Z. A. Xu and R. Gagnon and L. Taillefer},
journal= {arXiv preprint arXiv:cond-mat/9904138},
year = {2009}
}
Comments
4 pages in Tex, 5 figures in EPS; replaced on 5/12/99, minor changes