Non-volatile resistive switching in the dielectric superconductor YBa 2Cu3O7-δ

We report on the reversible, non-volatile and polarity-dependent resistive switching between superconductor and insulator states at the interfaces of an Au/YBa2Cu3O7-δ (YBCO)/Au system. We show that, upon application of electric pulses, the superconducting state of YBCO in regions near the electrode...

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Detalles Bibliográficos
Autores principales: Acha, Carlos Enrique, Rozenberg, Marcelo Javier
Publicado: 2009
Materias:
Grain boundaries
Oxygen
Superconducting materials
Switching systems
Yttrium barium copper oxides
Bulk resistances
Electric pulse
Inter grains
Non volatiles
Oxygen ions
Resistive switching
Superconducting state
Switching effects
Superconductivity
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09538984_v21_n4_p_Acha
http://hdl.handle.net/20.500.12110/paper_09538984_v21_n4_p_Acha
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:We report on the reversible, non-volatile and polarity-dependent resistive switching between superconductor and insulator states at the interfaces of an Au/YBa2Cu3O7-δ (YBCO)/Au system. We show that, upon application of electric pulses, the superconducting state of YBCO in regions near the electrodes can be reversibly removed and restored. In addition, four-wire measurements reveal that pulsing also induces significant non-volatile changes in the bulk resistance. We argue that our observations are compatible with a scenario where the switching effect is due to migration of oxygen ions along grain boundaries that control the inter-grain superconducting coupling. © 2009 IOP Publishing Ltd.

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