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Effect of the pseudogap on the Hall conductivity in underdoped YBa2Cu3O6+x

Z. A. Xu, Y. Zhang, N. P. Ong

cond-mat.supr-conarXiv:cond-mat/9903123

Abstract

In underdoped YBa2Cu3Ox (YBCO) with x = 6.63, the opening of the pseudogap at T* ~ 160 K has a strong effect on the Hall angle tan(theta). While the Hall response is significantly reduced, the diagonal current is relatively unaffected. The Hall conductivity suppression continues deep into the flux-flow state (from Tc to 40 K), as an anomalous suppression of the vortex Hall current.

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