STM Studies of Near-Optimal Doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$
A. Kapitulnik, A. Fang, C. Howald, and M. Greven
TL;DR
This paper reports scanning tunneling microscopy studies of the electronic density of states in nearly optimally doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+eta}$, revealing inhomogeneity and modulations in the superconducting gap and density of states.
Contribution
It provides detailed STM analysis of the spatial variations and modulations in the electronic states of near-optimally doped Bi2212, highlighting inhomogeneity and periodic structures.
Findings
Observation of inhomogeneous gap structure
Detection of density of states modulations with four-lattice constant period
Identification of coherence peak modulation
Abstract
In this paper we summarize our STM studies of the density of electronic states in nearly optimally doped BiSrCaCuO in zero field. We report on the inhomogeneity of the gap structure, density of states modulations with four-lattice constant period, and coherence peak modulation.
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Magnetic properties of thin films · Surface and Thin Film Phenomena