Abstract
Observation of photoinduced bulk current is reported in Cu and Zn illuminated with visible light at normal incidence. The current is detected by measuring the magnetic moment created in a superconducting loop connecting the surface exposed to the light and the rear surface of the specimen. A correlation of the photoinduced signal and the absorption coefficient of the metal is observed. In Cu the current is as large as 23 \ensuremath{\mu}A over a distance of 1 mm when the optical power density is 1 W/${\mathrm{cm}}^{2}$ at $\ensuremath{\lambda}=514.5$ nm and the temperature is 4.2 K.
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