Electric field effect in Au/SrTiO3/YBa2Cu3O7-x heterostructures

Rudolf Schneider; Rainer Auer; Dietmar Huettner

doi:10.1117/12.250269

5 July 1996 Electric field effect in Au/SrTiO₃/YBa₂Cu₃O_7-xheterostructures

Rudolf Schneider, Rainer Auer, Dietmar Huettner

Proceedings Volume 2697, Oxide Superconductor Physics and Nano-Engineering II; (1996) https://doi.org/10.1117/12.250269
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

Au/SrTiO₃/YBa₂Cu₃O_7-x heterostructures have been prepared in situ by pulsed laser deposition onto (100) SrTiO₃ substrates. Electric field controlled devices were patterned by suitable metal masks applied successively during the deposition process. Electrical break-through, polarization and relative dielectric permittivity of the SrTiO₃ layer have been studied as a function of the applied electric field. Resistivity, superconducting transition temperature and critical current density of the YBa₂Cu₃O_7-x layer with a thickness of a few unit cells were strongly affected by the electric field. The device parameters response time, transconductance and voltage gain were investigated. THe response time was dominated by the RC time constant of the device in agreement with the mechanism of direct charge transfer by the electric field, but the devices did not reveal a real voltage gain over one.

Citation Download Citation

Rudolf Schneider, Rainer Auer, and Dietmar Huettner "Electric field effect in Au/SrTiO₃/YBa₂Cu₃O_7-xheterostructures", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); https://doi.org/10.1117/12.250269

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