Infrared quenching of photoinduced persistent conductivity in YBa{sub 2}Cu{sub 3}O{sub 6+{ital x}}

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.118029· OSTI ID:389259

Chew, D C; Federici, J F; Gutierrez-Solana, J; Molina, G; Savin, W ^[1]; Wilber, W ^[2]

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1. Department of Physics, New Jersey Institute of Technology, Newark, New Jersey 07102 (United States)
2. Physical Science Directorate, Army Research Laboratory, Fort Monmouth, New Jersey 07703-5601 (United States)

Experimental evidence for infrared quenched photoinduced persistent conductivity in oxygen deficient YBa{sub 2}Cu{sub 3}O{sub 6+{ital 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. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 389259
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 21 Vol. 69; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CRYSTAL DEFECTS
HIGH-TC SUPERCONDUCTORS
INFRARED RADIATION
PHOTOCONDUCTIVITY
THIN FILMS
VACANCIES
YTTRIUM OXIDES