A possible minimum toy model with negative differential capacitance for self-sustained current oscillation
Materials Science
2007-05-23 v2
Abstract
We generalize a simple model for superlattices to include the effect of differential capacitance. It is shown that the model always has a stable steady-state solution (SSS) if all differential capacitances are positive. On the other hand, when negative differential capacitance is included, the model can have no stable SSS and be in a self-sustained current oscillation behavior. Therefore, we find a possible minimum toy model with both negative differential resistance and negative differential capacitance which can include the phenomena of both self-sustained current oscillation and oscillation of stable SSSs.
Cite
@article{arxiv.cond-mat/0512370,
title = {A possible minimum toy model with negative differential capacitance for self-sustained current oscillation},
author = {Gang Xiong and Z. Z. Sun and X. R. Wang},
journal= {arXiv preprint arXiv:cond-mat/0512370},
year = {2007}
}
Comments
6 pages, 3 figures