Variable range hopping theory for the nodal gap in strongly underdoped cuprate Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+\delta}$

Fu-Chun Zhang; Jun-Qiu Zhang; T. M. Rice; Wei-Qiang Chen

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Variable range hopping theory for the nodal gap in strongly underdoped cuprate Bi₂Sr_(2-x)La_xCuO_(6+δ)

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arxiv 1601.05354 v1 pith:HE3P5TI3 submitted 2016-01-20 cond-mat.str-el cond-mat.supr-con

Variable range hopping theory for the nodal gap in strongly underdoped cuprate Bi₂Sr_(2-x)La_xCuO_(6+δ)

Wei-Qiang Chen , Jun-Qiu Zhang , T. M. Rice , Fu-Chun Zhang This is my paper

classification cond-mat.str-el cond-mat.supr-con

keywords cupratesnodalcupratedeltadependencedopingefros-schklovskiiexperiments

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Recent angle resolved photoemission spectrascope (ARPES) experiments on strongly underdoped Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+\delta}$ cuprates have reported an unusual gap in the nodal direction. Transport experiments on these cuprates found variable range hopping behavior observed. These cuprates have both electron and hole doping which has led to proposals that this cuprate is analogous to a partially compensated semiconductors. The nodal gap then corresponds to the Efros-Schklovskii(ES) gap in such semiconductors. We calculate the doping dependence and temperature dependence of a ES gap model and find support for an Efros-Schklovskii model.

Variable range hopping theory for the nodal gap in strongly underdoped cuprate Bi₂Sr_(2-x)La_xCuO_(6+δ)

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