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Theory of induced superconductivity in graphene

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Presentation on theme: "Theory of induced superconductivity in graphene"— Presentation transcript:

1 Theory of induced superconductivity in graphene
Mikhail A. Skvortsov Mikhail V. Feigel’man Konstantin S. Tikhonov Landau Institute, Moscow Pis'ma v ZhETF 88, 780 (2008) [JETP Lett. 88, 747 (2008)]

2 Graphene + superconducting islands

3 Graphene

4 Superconductive proximity effect in graphene

5 Usadel equation in graphene

6 Josephson coupling via disordered graphene

7 Thermal phase transition

8 Transition temperature vs GT

9 Superfluid density below Tc
?

10 Spectral gap

11 Spectral gap vs GT

12 Spectral gap

13 Spectral gap in an irregular system

14 Two-energy-scale superconductivity

15 Magnetic field effect (low T, low H)

16 Magnetic field effect (low T, high H)

17 Phase diagram ?

18 Experiment: Tin islands on graphene

19 Experiment: Tin islands on graphene

20 Summary


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