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5 July 1996 Electric field effect in Au/SrTiO3/YBa2Cu3O7-x heterostructures
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Au/SrTiO3/YBa2Cu3O7-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 YBa2Cu3O7-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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rudolf Schneider, Rainer Auer, and Dietmar Huettner "Electric field effect in Au/SrTiO3/YBa2Cu3O7-x heterostructures", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); doi: 10.1117/12.250269;

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