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Modulations in Superconductors: Probes of Underlying Physics
Yehao Guo1, Dong Qiu1, Mingxin Shao1
1State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China.
Advanced Materials (Deerfield Beach, Fla.)
|December 12, 2022
Summary
Modulation techniques are crucial for understanding quantum materials like superconductors. New methods offer greater control over properties, enabling deeper insights into superconductivity and exotic phenomena.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Quantum Materials
Background:
- Exotic phenomena in quantum materials (topological, magnetic, superconductors) require precise conditions.
- Established modulation methods include elemental substitution, annealing, and polarization-induced gating.
Purpose of the Study:
- To comprehensively review and categorize modulation techniques for emergent superconductors.
- To provide a framework for future investigations into quantum materials.
Main Methods:
- Categorization of modulations: stoichiometric manipulation, electrostatic gating, mechanical modulation, geometrical design.
- Review of state-of-the-art techniques: electric-double-layer transistor, piezoelectric strain, angle twisting, nanofabrication.
- Contextualization with established methods.
Main Results:
- Advanced techniques enhance tuning capability and dimensionality for controlling quantum fluctuations, electronic correlation, and phase coherence.
- Recent advances highlighted in nickelates, Kagome metals, and magic-angle graphene.
Conclusions:
- Systematic modulation strategies are essential for understanding emergent superconductors.
- This review serves as a guide to stimulate further research in quantum materials.
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