3 papers
cond-mat.supr-con2019
Flat-band superconductivity in periodically strained graphene: mean-field and Berezinskii-Kosterlitz-Thouless transition
Teemu J. Peltonen, Tero T. Heikkilä
In the search of high-temperature superconductivity one option is to focus on increasing the density of electronic states. Here we study both the normal and -wave superconductin…
cond-mat.mes-hall2019
Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene
Aleksi Julku, Teemu J. Peltonen, Long Liang +2
We study superconductivity of twisted bilayer graphene with local and non-local attractive interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) t…
cond-mat.supr-con2018
Mean-field theory for superconductivity in twisted bilayer graphene
T. J. Peltonen, R. Ojajärvi, T. T. Heikkilä
Recent experiments show how a bilayer graphene twisted around a certain magic angle becomes superconducting as it is doped into a region with approximate flat bands. We investigate…