Electric-Field-Induced Superconductivity on an Organic/Oxide Interface

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概要

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• Many superconductors have been developed by inducing charge carriers into a mother insulator compound. Chemical substitution of impurity atoms is usually used for inducing charge carriers, and this method is called ``chemical doping''. Another method to tune charge carrier density is the electric field effect, which is widely utilized as a field-effect transistor. Here, we review recent progress in an electric field-effect study for developing a new oxide superconductor with an organic electrolyte gate. We first present a device configuration of an electric double layer transistor with oxide semiconductors, SrTiO<inf>3</inf>and KTaO<inf>3</inf>. We then present the electrochemical interface properties and room-temperature device characteristics with various electrolytes. Finally, we present the superconductivity emerging at an organic/oxide interface, and discuss the phase diagram of electric-field-induced superconductors by comparing with superconductors obtained by chemical doping.

• 2013-11-25

著者

• Ueno Kazunori

  Department Of Basic Science University Of Tokyo

• Ueno Kazunori

  Department of Basic Science, University of Tokyo, Meguro, Tokyo 153-8902, Japan

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• Electric-Field-Induced Superconductivity on an Organic/Oxide Interface
• Electric-Field-Induced Superconductivity on an Organic/Oxide Interface (SELECTED TOPICS IN APPLIED PHYSICS : Nano Electronics and Devices : Characterization and Control of Nano Surfaces and Interfaces)

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