Laser-induced electromotive force of a metal-superconductor YBaCuO junction

I-V characteristics of YBCO-Ag system under blue laser (λ = 450 nm) illumination were studied from 100 to 300 K and obvious photovoltaic effects were observed. All the I-V curves in the temperature range intersect at a point in the first quadrant while the laser points to the cathode electrode, indicating a zero temperature coefficient of resistivity. This implies that the outputting voltage keeps constant in a broad temperature range when a critical bias current is assigned. The intersection points of different laser intensities fall in a straight line, the slope of which (Rc) is independent of temperature and laser intensity.

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Laser-induced electromotive force of a metal-superconductor YBaCuO junction

Cited by 4 publications

References 8 publications

Photovoltaic effect in cuprate superconductor (Bi, Pb)2Sr2Ca2Cu3O10+δ and Bi2Sr2CaCu2O8+δ under magnetic field

Photovoltaic effect in cuprate superconductor (Bi, Pb)2Sr2Ca2Cu3O10+δ and Bi2Sr2CaCu2O8+δ under magnetic field

Origin of photovoltaic effect in (Bi, Pb)2Sr2Ca2Cu3O10+δ /Ag heterostructure

Zero temperature coefficient of resistivity induced by photovoltaic effect in Y Ba2Cu3O6.96 ceramics

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