Superconductor–insulator transition in La2 − xSr x CuO4 at the pair quantum resistance

A. T. Bollinger, G. Dubuis, J. Yoon, D. Pavuna, J. Misewich and I. Božović ()
Additional contact information
A. T. Bollinger: Brookhaven National Laboratory
G. Dubuis: Brookhaven National Laboratory
J. Yoon: Brookhaven National Laboratory
D. Pavuna: Ecole Polytechnique Fédérale de Lausanne
J. Misewich: Brookhaven National Laboratory
I. Božović: Brookhaven National Laboratory

Nature, 2011, vol. 472, issue 7344, 458-460

Abstract: The superconductivity transition High-temperature superconductivity in copper oxides arises when a parent insulator compound is 'doped' by adding or removing valence electrons, usually by inserting atoms into the lattice structure. This would be better achieved by tuning the carrier density using the electric field effect, as it removes ambiguity about whether the electronic properties change because of alterations in the crystal structure or in the electronic structure. Such tuning is difficult to achieve because it requires perfect, ultrathin films and a huge local field. Bollinger et al. report the synthesis of one-cell-thick epitaxial films of La2xSrxCuO4, and the use of the films to make double-layer transistors. The transistors have very large fields, and by changing the surface carrier density, the critical temperature can be shifted by up to 30 K. The resistance varies as predicted for a two-dimensional superconductor–insulator transition.

Date: 2011
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/nature09998 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

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:nature:v:472:y:2011:i:7344:d:10.1038_nature09998

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

DOI: 10.1038/nature09998

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

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