Plasmalike negative capacitance in nanocolloids

J. Shulman, S. Tsui, F. Chen, Y. Y. Xue, C. W. Chu

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


A negative capacitance has been observed in a nanocolloid between 0.1 and 10-5 Hz. The response is linear over a broad range of conditions. The low- ω dispersions of both the resistance and capacitance are consistent with the free-carrier plasma model, while the transient behavior demonstrates a possible energy storage mechanism. A collective excitation, therefore, is suggested.

Original languageEnglish
Article number032902
JournalApplied Physics Letters
Issue number3
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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