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Giant enhancement of the thermal Hall conductivity κ_{xy} in the superconductor YBa_2Cu_3O_7

Y. Zhang·N. P. Ong·P. W. Anderson·D. A. Bonn·R. Liang·W. N. Hardy
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Abstract

In high-purity crystals of YBa_2Cu_3O_7, the quasiparticle (qp) lifetime τand the (weak-field) thermal Hall conductivity κ_{xy} undergo dramatic increases below 90K. We present a detailed picture of the behavior of κ_{xy} at low temperature, in particular its scaling properties, which are directly relevant to the issue of whether Landau quantization of the qp states occurs.

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Y. Zhang, N. P. Ong, P. W. Anderson, D. A. Bonn, R. Liang, W. N. Hardy. 2000-08-09. Giant enhancement of the thermal Hall conductivity κ_{xy} in the superconductor YBa_2Cu_3O_7. https://doi.org/10.1103/physrevlett.86.890

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