In other words, the potential energy barrier for electrons in the channel is lowered.
2.
The problem consists of solving the one-dimensional time-independent Schr�dinger equation for a particle encountering a rectangular potential energy barrier.
3.
A hydrogen bond joins normal base pairs of DNA . There exists a double well potential along a hydrogen bond separated by a potential energy barrier.
4.
The photon hits the dust grain, and some of its energy is used in overcoming the potential energy barrier ( due to the possible positive charge of the grain ) to remove the electron from the grain.
5.
Cyclobutadiene, for example, rapidly dimerizes with no potential energy barrier via a Diels-Alder reaction to form tricyclooctadiene While the antiaromatic character of cyclobutadiene is the subject of debate, the relief of antiaromaticity is usually invoked as the driving force of this reaction.
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