2008/03/11 by C. Acha, C Acha, M. J. Rozenberg +1 · 2 citations
Engineering · Physics and Astronomy · #Advanced Memory and Neural Computing #Physics of Superconductivity and Magnetism #Superconductivity in MgB2 and Alloys #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/21/4/045702
4 pages, 4 figures, corresponding author: C. Acha ([email protected])
arxiv created 2008/03/11 · openalex publication_date 2008/12/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We report on the reversible, non-volatile and polarity-dependent resistive switching between superconductor and insulator states at the interfaces of an Au/YBa(2)Cu(3)O(7-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.