Quantum fluctuations and density of states in low-dimensional superconductors
Regular Article
First Online:
- 9 Downloads
Part of the following topical collections:
Abstract
We investigate the influence of quantum phase fluctuations on electron density of states (DOS) in ultrathin superconducting films and nanowires. Using an effective action approach we derive a non-perturbative correction to DOS in such systems. The main effect of phase fluctuations in quasi-two-dimensional films is the appearance of electron states at subgap energies while in quasi-one-dimensional nanowires fluctuations also lead to smearing of the gap edge singularity in DOS.
Preview
Unable to display preview. Download preview PDF.
References
- 1.K.Yu. Arutyunov, D.S. Golubev, A.D. Zaikin, Phys. Rep. 464, 1 (2008) ADSCrossRefGoogle Scholar
- 2.A.I. Larkin, A.A. Varlamov, Theory of Fluctuations in Superconductors (Clarendon, Oxford, 2005) Google Scholar
- 3.A.D. Zaikin, D.S. Golubev, A. van Otterlo, G.T. Zimanyi, Phys. Rev. Lett. 78, 1552 (1997) ADSCrossRefGoogle Scholar
- 4.D.S. Golubev, A.D. Zaikin, Phys. Rev. B 64, 014504 (2001) ADSCrossRefGoogle Scholar
- 5.A.G. Semenov, A.D. Zaikin, Phys. Rev. B 94, 014512 (2016) ADSCrossRefGoogle Scholar
- 6.A.G. Semenov, A.D. Zaikin, Fortschr. Phys. 65, 1600043 (2017) CrossRefGoogle Scholar
- 7.A. Radkevich, A.G. Semenov, A.D. Zaikin, Phys. Rev. B 96, 085435 (2017) ADSCrossRefGoogle Scholar
- 8.R. Watanabe, S. Tsuchiya, Y. Ohashi, Phys. Rev. A 82, 043630 (2010) ADSCrossRefGoogle Scholar
- 9.D.S. Golubev, A.D. Zaikin, Phys. Rev. B 78, 144502 (2008) ADSCrossRefGoogle Scholar
- 10.Fin Y. Oreg, A.M. Finkelstein, Phys. Rev. Lett. 83, 191 (1999) ADSCrossRefGoogle Scholar
- 11.K.D. Usadel, Phys. Rev. Lett. 25, 507 (1970) ADSCrossRefGoogle Scholar
- 12.W. Belzig, F. Wilhelm, C. Bruder, G. Schön, A.D. Zaikin, Superlattices Microstruct. 25, 1251 (1999) ADSCrossRefGoogle Scholar
- 13.A. van Otterlo, D.S. Golubev, A.D. Zaikin, G. Blatter, Eur. Phys. J. B 10, 131 (1999) ADSCrossRefGoogle Scholar
- 14.K.Yu. Arutyunov, J.S. Lehtinen, A.A. Radkevich, A.G. Semenov, A.D. Zaikin, J. Magn. Magn. Mater. 3, 356 (2017) Google Scholar
- 15.K.Yu. Arutyunov, J.S. Lehtinen, A.A. Radkevich, A.G. Semenov, A.D. Zaikin, Phys. Solid State 59, 2110 (2017) [Fizika Tverdogo Tela 59, 2092 2017] ADSCrossRefGoogle Scholar
- 16.D. Dentelski, A. Frydman, E. Shimshoni, E.G. Dalla Torre, Phys. Rev. B 97, 100503(R) (2018) ADSCrossRefGoogle Scholar
Copyright information
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019