Non-volatile resistive switching in the dielectric superconductor YBa2Cu3O7−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-delta (YBCO)/Au system. We show that, upon application of electric pulses, the superconducting state of YBCO in regions near the elect...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2009-01, Vol.21 (4), p.045702-045702 (5)
Main Authors: Acha, C, Rozenberg, M J
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)
Online Access:Get full text
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Summary:We report on the reversible, non-volatile and polarity-dependent resistive switching between superconductor and insulator states at the interfaces of an Au/YBa2Cu3O7-delta (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.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/21/4/045702