Pseudogap in a thin film of a conventional superconductor

Benjamin Sacépé (), Claude Chapelier, Tatyana I. Baturina, Valerii M. Vinokur, Mikhail R. Baklanov and Marc Sanquer
Additional contact information
Benjamin Sacépé: SPSMS, UMR-E 9001, CEA-INAC/UJF-Grenoble 1
Claude Chapelier: SPSMS, UMR-E 9001, CEA-INAC/UJF-Grenoble 1
Tatyana I. Baturina: A.V. Rzhanov Institute of Semiconductor Physics SB RAS
Valerii M. Vinokur: Argonne National Laboratory
Mikhail R. Baklanov: IMEC Kapeldreef 75
Marc Sanquer: SPSMS, UMR-E 9001, CEA-INAC/UJF-Grenoble 1

Nature Communications, 2010, vol. 1, issue 1, 1-6

Abstract: Abstract A superconducting state is characterized by the gap in the electronic density of states, which vanishes at the superconducting transition temperature Tc. It was discovered that in high-temperature superconductors, a noticeable depression in the density of states, the pseudogap, still remains even at temperatures above Tc. Here, we show that a pseudogap exists in a conventional superconductor, ultrathin titanium nitride films, over a wide range of temperatures above Tc. Our study reveals that this pseudogap state is induced by superconducting fluctuations and favoured by two-dimensionality and by the proximity to the transition to the insulating state. A general character of the observed phenomenon provides a powerful tool to discriminate between fluctuations as the origin of the pseudogap state and other contributions in the layered high-temperature superconductor compounds.

Date: 2010
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms1140 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:1:y:2010:i:1:d:10.1038_ncomms1140

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms1140

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().