PIRSA:11110078 Scientific Series Condensed Matter

DOI10.48660/11110078

Series: Quantum Matter

Thomale, R. (2011). New Paths to Unconventional Topological Superconductivity. Perimeter Institute. https://pirsa.org/11110078

Thomale, Ronny. New Paths to Unconventional Topological Superconductivity. Perimeter Institute, Nov. 07, 2011, https://pirsa.org/11110078 

@misc{ pirsa_PIRSA:11110078,
  doi = {10.48660/11110078},
  url = {https://pirsa.org/11110078},
  author = {Thomale, Ronny},
  keywords = {Condensed Matter},
  language = {en},
  title = {New Paths to Unconventional Topological Superconductivity},
  publisher = {Perimeter Institute},
  year = {2011},
  month = {nov},
  note = {PIRSA:11110078 see, \url{https://pirsa.org}}
}

Abstract

We report on our recent progress to investigate materials classes exhibiting d+id superconductivity, where topologically nontrivial pairing phases can emerge. Specifically, motivated by recent experimental progress, we show that graphene doped to the van Hove regime can give rise to a plethora of interesting ordering instabilities such as spin density wave and superconductivity. As a function of system parameters such as doping and range of Coulomb interaction, we explain which instability is favored by the system, and analyze the effect of long-range interactions on superconductivity giving rise to a competition between singlet d+id and triplet f wave. We also outline our work in progress for other materials classes which we believe are promising to stabilize such interesting topological superconducting states of matter.

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