Atomic-scale electronic structure of the cuprate high-temperature superconductors

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Key Points

The study aims to understand the atomic-scale electronic structure of cuprate high-temperature superconductors and their evolution from parent Mott insulators through doping to superconducting states.
Utilized scanning tunneling microscopy and scanning transmission electron microscopy for atomic-scale measurements.
Reviewed key electronic structure findings related to charge transfer gaps and their influence on superconducting transition temperatures.
Direct measurements of the parent compound's charge transfer gap were obtained.
A correlation was found indicating an inverse relationship between charge transfer gaps and maximum superconducting transition temperatures (Tc,max).
Evidence of local pairing transitioning to long-range phase coherence in underdoped regions was demonstrated.

Review discusses electronic structure changes in cuprate superconductors with doping, indicating critical insights into superconductivity.

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Yao et al. (2026) studied this question.

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