Phys. Rev. Lett. 91, 016801 (2003) [4 pages]Microwave Resonance of the 2D Wigner Crystal around Integer Landau FillingsReceived 29 January 2003; published 3 July 2003 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 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 the Wigner crystal state around integer Landau levels. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.016801
DOI:
10.1103/PhysRevLett.91.016801
PACS:
73.43.–f, 73.20.–r, 73.21.–b
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