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Tunneling Spectroscopy of the Underdoped High-$T_{c}$ Superconductors

Yunkyu Bang·Han-Yong Choi
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Abstract

Considering a possibility that the pseudogap state in the underdoped high-$T_{c}$ superconductors is not due to a superconducting correlation, we study the tunneling spectroscopy below $T_{c}$ based on the phenomenological models of the pseudogap state. Specifically we consider two cases: (1) the pseudogap is a simple suppression of the density of states with an unknown origin; (2) the pseudogap state is due to an antiferromagnetic correlation. For both cases we calculate $dI/dV$ using the BTK theory. The results are discussed in comparison with experiments.

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Yunkyu Bang, Han-Yong Choi. 2000-03-29. Tunneling Spectroscopy of the Underdoped High-$T_{c}$ Superconductors. https://doi.org/10.1103/physrevb.62.11763

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