Abstract
We propose a way of making graphene superconductive by putting on it small superconductive islands which cover a tiny fraction of graphene area. We show that the critical temperature, T c , can reach several Kelvins at the experimentally accessible range of parameters. At low temperatures, T
T c , and zero magnetic field, the density of states is characterized by a small gap E g ≤ T c resulting from the collective proximity effect. Transverse magnetic field H g (T) ∝ E g is expected to destroy the spectral gap driving graphene layer to a kind of a superconductive glass state. Melting of the glass state into a metal occurs at a higher field H g2(T).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. Novoselov et al., Science 306, 666 (2004).
A. H. Castro Neto et al., arxiv:0709.1163.
H. Heersche et al., Nature 446, 56 (2007); Xu Du, I. Skachko, and E. Andrei, Phys. Rev. B 77, 184507 (2008).
K. Usadel, Phys. Rev. Lett. 25, 507 (1970).
M. Titov, unpublished.
K. S. Tikhonov and S. V. Kopylov, unpublished.
M. Yu. Kupriyanov and V. F. Lukichev, Zh. Eksp. Teor. Fiz. 94, 139 (1987) [Sov. Phys. JETP 67, 1163 (1988)].
B. Huard, N. Stander, J. A. Sulpizio, and D. Goldhaber-Gordon, arXiv:0804.2040.
W. Y. Shih and D. Stroud, Phys. Rev. B 32, 158 (1985).
F. V. Tikhonenko, D. W. Horsell, R. V. Gorbachev, and A. K. Savchenko, Phys. Rev. Lett. 100, 056802 (2008).
A. A. Golubov and M. Yu. Kupriyanov, Sov. Phys. JETP 69, 805 (1989).
P. M. Ostrovsky, M. A. Skvortsov, and M. V. Feigel’man, Phys. Rev. Lett. 87, 027002 (2001).
A. I. Larkin and Yu. N. Ovchinnikov, Zh. Eksp. Teor. Fiz. 61, 2147 (1971) [Sov. Phys. JETP 34, 1144 (1972)].
J. S. Meyer and B. D. Simons, Phys. Rev. B 64, 134516 (2001).
B. Spivak and F. Zhou, Phys. Rev. Lett. 74, 2800 (1995).
V. M. Galitskii and A. I. Larkin, Phys. Rev. Lett. 87, 087001 (2001).
M. V. Feigel’man, A. I. Larkin, and M. A. Skvortsov, Phys. Rev. Lett. 86, 1869 (2001).
M. V. Feigel’man and A. I. Larkin, Chem. Phys. 235, 107(1998).
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Feigel’man, M.V., Skvortsov, M.A. & Tikhonov, K.S. Proximity-induced superconductivity in graphene. Jetp Lett. 88, 747–751 (2008). https://doi.org/10.1134/S0021364008230100
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0021364008230100