Influence of the doping concentration of Y1−yCayBa2Cu3O7−δ drain-source channels on the properties of superconducting field-effect devices

Autor:	G. Yu. Logvenov, A. Sawa, Jochen Mannhart, Christof W. Schneider
Rok vydání:	2003
Předmět:	Superconductivity Materials science High-temperature superconductivity Physics and Astronomy (miscellaneous) Condensed matter physics Doping Field effect law.invention law Condensed Matter::Superconductivity Electric field Cuprate MISFET Phase diagram
Zdroj:	Applied Physics Letters. 83:3528-3530
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1622780
Popis:	Systematic electric-field-effect studies of the charge transport in doped YBa2Cu3O7−δ films were conducted. For overdoped drain-source channels, the normal-state resistance and the critical temperature Tc decrease with electric-field-induced enhancements of the hole concentration n. For underdoped channels, the resistance decreases, but Tc increases with n. For chemically optimally doped channels, the resistance decreases with n, however, Tc shifts are less pronounced compared with underdoped and overdoped films. The results verify that the superconducting properties of YBa2Cu3O7−δ can be controlled by electric fields, as predicted by the generic phase diagram of the cuprates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbc25e5c369f38a11621925221a8bb13 https://doi.org/10.1063/1.1622780 Zobrazit plný text záznamu