Extended van Hove Singularity and Superconducting Instability in Doped Graphene
✍ Scribed by McChesney, J. L.; Bostwick, Aaron; Ohta, Taisuke; Seyller, Thomas; Horn, Karsten; González, J.; Rotenberg, Eli
- Book ID
- 115439454
- Publisher
- The American Physical Society
- Year
- 2010
- Tongue
- English
- Weight
- 891 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0031-9007
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The van Hove singularity can enhance structural and magnetic instabilities, which can compete with superconductivity. Evidence for such instabilities, including dynamical fluctuations and pseudogaps, is presented.
We apply the Coherent Potential Approximation (CPA) to a simple extended Hubbard model with a nearest and next nearest neighbour hopping for disordered superconductors with s-, d-and p-wave pairing. We show how the Van Hove singularities in the electron density of states enhance the transition tempe