This short review covers the emerging research field of interface superconductivity in complex oxide heterostructures. The first part of the paper is devoted to the prediction and observation of an interfacial superconducting state in metallic/insulating copper oxide bilayers. In the second part of the manuscript, the discovery and the modulation of superconductivity at the interface between two insulating oxides, LaAlO3 and SrTiO3, is described. These examples serve as an illustration of the potential that interfaces hold for revealing novel electronic behavior in complex oxide heterostructures, opening possibly a path to enhance the critical temperature or to discover new superconductors.
Cette courte revue couvre le champ émergeant de recherche de la supraconductivité à lʼinterface dʼoxydes complexes. La première partie est consacrée à la prédiction et à lʼobservation dʼun état supraconducteur à lʼinterface entre une couche cuprate métallique et une couche cuprate isolante. Dans la deuxième partie du manuscrit, la découverte et la modulation de la supraconductivité à lʼinterface de deux oxydes isolants, le LaAlO3 et le SrTiO3, est décrite. Ces exemples servent à illustrer le potentiel que détiennent les interfaces dʼoxydes complexes. Ce champ dʼactivité pourrait ouvrir la voie à lʼaugmentaion de la température critique ou éventuellement à la decouverte de nouveaux supraconducteurs.
Mots-clés : Supraconductivité, Oxydes complexes, Bi-dimensionalité, Cuprates, Diagramme de phase, Effet de champ électrique
Stefano Gariglio 1; Jean-Marc Triscone 1
@article{CRPHYS_2011__12_5-6_591_0, author = {Stefano Gariglio and Jean-Marc Triscone}, title = {Oxide interface superconductivity}, journal = {Comptes Rendus. Physique}, pages = {591--599}, publisher = {Elsevier}, volume = {12}, number = {5-6}, year = {2011}, doi = {10.1016/j.crhy.2011.03.006}, language = {en}, }
Stefano Gariglio; Jean-Marc Triscone. Oxide interface superconductivity. Comptes Rendus. Physique, Superconductivity of strongly correlated systems, Volume 12 (2011) no. 5-6, pp. 591-599. doi : 10.1016/j.crhy.2011.03.006. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2011.03.006/
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