Measuring Current and Voltage (IMAGE)

DOE/Lawrence Berkeley National Laboratory

Measuring Current and Voltage

Caption

The researchers measured current and voltage with platinum contacts set at right angles to the current. In a typical set-up, the film was 100 nanometers thick, its width from back to front was 1 millimeter, and the distance between contacts was 200 micrometers. Voltage and current increase with the number of domain walls; with contacts 200 micrometers apart, voltage reached 16 volts, several times the 2.7 electron volt band gap of bismuth ferrite.

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Lawrence Berkeley National Laboratory

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