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Microwave Rectification at the Boundary between Two-Dimensional Electron Systems

Mesoscale and Nanoscale Physics 2007-05-23 v1 Strongly Correlated Electrons

Abstract

Rectification of microwave radiation (20-40 GHz) by a line boundary between two two-dimensional metals on a silicon surface was observed and investigated at different temperatures, in-plane magnetic fields and microwave powers. The rectified voltage VdcV_{dc} is generated whenever the electron densities n1,2n_{1,2} of the two metals are different, changing polarity at n1n2n_1 \approx n_2. Very strong nonlinear response is found when one of the two 2D metals is close to the electron density corresponding to the reported magnetic instability in this system.

Keywords

Cite

@article{arxiv.cond-mat/0110331,
  title  = {Microwave Rectification at the Boundary between Two-Dimensional Electron Systems},
  author = {I. Hoxha and S. A. Vitkalov and N. A. Zimbovskaya and M. P. Sarachik and T. M. Klapwijk},
  journal= {arXiv preprint arXiv:cond-mat/0110331},
  year   = {2007}
}

Comments

8 pages, 6 figures