2001
DOI: 10.1038/35106539
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Superconductivity in CaCuO2 as a result of field-effect doping

Abstract: Understanding the doping mechanisms in the simplest superconducting copper oxide-the infinite-layer compound ACuO2 (where A is an alkaline earth metal)-is an excellent way of investigating the pairing mechanism in high-transition-temperature (high-Tc) superconductors more generally. Gate-induced modulation of the carrier concentration to obtain superconductivity is a powerful means of achieving such understanding: it minimizes the effects of potential scattering by impurities, and of structural modifications a… Show more

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Cited by 77 publications
(59 citation statements)
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“…Recently a remarkable breakthrough has been accomplished by doping insulator surfaces electrically in the so-called Field-Effect Transistor (FET) geometry [6]. SSC with high T c was induced by both electronic and hole doping of films of the prototype cuprate material, CaCuO 2 [7].All this makes us believe that the search for SSC emerges as a new and important development in studies of the properties of surfaces, especially their metallic properties. As for the SSC itself, its mechanisms are unknown, and may have nothing to do with the ones in the bulk.…”
mentioning
confidence: 99%
See 1 more Smart Citation
“…Recently a remarkable breakthrough has been accomplished by doping insulator surfaces electrically in the so-called Field-Effect Transistor (FET) geometry [6]. SSC with high T c was induced by both electronic and hole doping of films of the prototype cuprate material, CaCuO 2 [7].All this makes us believe that the search for SSC emerges as a new and important development in studies of the properties of surfaces, especially their metallic properties. As for the SSC itself, its mechanisms are unknown, and may have nothing to do with the ones in the bulk.…”
mentioning
confidence: 99%
“…Recently a remarkable breakthrough has been accomplished by doping insulator surfaces electrically in the so-called Field-Effect Transistor (FET) geometry [6]. SSC with high T c was induced by both electronic and hole doping of films of the prototype cuprate material, CaCuO 2 [7].…”
mentioning
confidence: 99%
“…The universality of the phase diagram has been confirmed in a recent study of single-layer CaCuO 2 + z films in the FET geometry 28 . The features identified here for …”
Section: Some Microscopic Comparisonsmentioning
confidence: 54%
“…On the microscopic origin of the universality of the T c vs doping law A remarkable feature of the experimental data on the superconducting cuprates is the dependence of T c /T c,max on the number of holes, n h , per CuO 2 unit [4,10]. Namely, T c /T c,max rises and falls as n h increases from below optimal doping, n h,max , to above, and the functional form of this relation is the same for the different materials [4].…”
Section: The Modelmentioning
confidence: 99%