Microwave-induced dc voltages in a YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystal

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.15300· OSTI ID:284710

Ling, D C; Chen, J T; Wenger, L E ^[1]

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1. Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48202 (United States)

Microwave-induced dc voltages in a YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystal have been observed along its {ital c} axis with or without a dc bias current by utilizing standing waves near the end of an X-band (8{endash}12 GHz) waveguide. With a dc bias current present, the induced voltages arise from both bolometric and nonbolometric effects; however, the characteristics of the induced voltages versus bias currents due to these two effects are distinctively different. In the bolometric effect, the induced voltages are simply due to a resistive change caused by microwave heating whereas the induced voltages from the nonbolometric effect are due to the Josephson vortex flow generated by the microwave {ital H} field below the superconducting transition temperature. Without a dc bias current, the induced voltages are attributed to the inverse ac Josephson effect which requires the presence of both the microwave {ital E} and {ital H} fields. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284710
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 22 Vol. 53; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARIUM OXIDES
BILAYERS
COLLECTIVE EXCITATIONS
COUPLING
CUPRATES
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
HOPPING
JOSEPHSON EFFECT
MICROWAVE HEATING
MICROWAVE RADIATION
MONOCRYSTALS
NUMERICAL SOLUTION
SUPERCONDUCTING JUNCTIONS
TEMPERATURE DEPENDENCE
YTTRIUM OXIDES