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Topological surface states in nodal superconductors
Andreas P Schnyder1, Philip M R Brydon
1Max-Planck-Institut für Festkörperforschung, Heißenbergstrasse 1, D-70569 Stuttgart, Germany.
Summary
Nodal topological superconductors, including Weyl and noncentrosymmetric types, are crucial for quantum information and device fabrication. This review covers their topological properties, surface states, and candidate materials.
Area of Science:
- Condensed Matter Physics
- Quantum Materials
- Solid State Physics
Background:
- Topological superconductors are key for quantum computing and advanced electronics.
- Unconventional superconductors with nodal structures exhibit unique topological properties.
Purpose of the Study:
- To review theoretical advancements in nodal topological superconductors.
- To focus on Weyl and noncentrosymmetric superconductors and their surface states.
Main Methods:
- Reviewing bulk topological properties of nodal superconductors.
- Analyzing topological surface states and their unusual characteristics.
- Surveying candidate materials and experimental signatures.
Main Results:
- Nodal superconductors possess nontrivial topological characteristics.
- Protected surface states are a key feature of these systems.
- Various candidate materials and experimental evidence are discussed.
Conclusions:
- Nodal topological superconductors offer significant potential for future technologies.
- Understanding their topological properties and surface states is critical for material discovery and application.
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