Microwave Resonance of 2D Wigner Crystal around integer Landau fillings

Details Microwave Resonance of 2D Wigner Crystal around integer Landau fillings Microwave Resonance of 2D Wigner Crystal around integer Landau fillings

2003-01-30

arxiv.org/abs/cond-mat/0301579v1

Physical Review Letters 91, 016801 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.91.016801

We have observed a resonance in the real part of the finite frequency diagonal conductivity using microwave absorption measurements in high quality 2D electron systems near {\em integer fillings}. The resonance exists in some neighborhood of filling factor around corresponding integers and is qualitatively similar to previously observed resonance of weakly pinned Wigner crystal in high $B$ and very small filling factor regime. Data measured around both $\nu=1$ and $\nu=2$ are presented. We interpret the resonance as the signature of Wigner crystal state around integer Landau levels.

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