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Microwave Resonance of 2D Wigner Crystal around integer Landau fillings

Yong P. Chen·R. M. Lewis·L. W. Engel·D. C. Tsui·P. D. Ye·L. N. Pfeiffer·K. W. West
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Abstract

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 $ν=1$ and $ν=2$ are presented. We interpret the resonance as the signature of Wigner crystal state around integer Landau levels.

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Yong P. Chen, R. M. Lewis, L. W. Engel, D. C. Tsui, P. D. Ye, L. N. Pfeiffer, K. W. West. 2003-01-30. Microwave Resonance of 2D Wigner Crystal around integer Landau fillings. https://doi.org/10.1103/physrevlett.91.016801

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