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Quasistationary current contributions in electronic devices

Neyts K., Beeckman J., Beunis F.

Opto-Electronics Review

2007

Vol. 15, No. 1

41-46

In an electronic device, the current supplied to the electrodes is related to different types of processes inside the device: current density, change in spontaneous polarization, and change in dielectric properties. Two expressions for the electrode current are derived: one is based on the time derivative of the Shockley-Ramo theorem, the other on the time derivative of the dielectric tensor. This result is illustrated for a switching liquid crystal device and a two-dimensional flux tube.