Infrared quenching of photoinduced persistent conductivity in YBa2Cu3O6+x

D. C. Chew, J. F. Federici, J. Gutierrez-Solana, G. Molina, W. Savin, W. Wilber

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18 Scopus citations


Experimental evidence for infrared quenched photoinduced persistent conductivity in oxygen deficient YBa2Cu3O6+x films is presented. Results are interpreted in terms of both a charge transfer model, in which photogenerated electrons are trapped in oxygen vacancy defects, and a photoassisted oxygen ordering model. Infrared illumination of the photoinduced state results in detrapping of electrons, a recombination of photogenerated holes/electrons, and a partial quenching of the photoinduced state. Experimental results suggest the possibility of optically controlled superconducting devices in which the superconducting state is generated and quenched with different colors of light.

Original languageEnglish (US)
Pages (from-to)3260-3262
Number of pages3
JournalApplied Physics Letters
Issue number21
StatePublished - Nov 18 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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