Microwave resonance of the reentrant insulating quantum Hall phases in the first excited Landau level

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Microwave resonance of the reentrant insulating quantum Hall phases in the first excited Landau level

R. M. Lewis, Yong P. Chen, L. W. Engel, D. C. Tsui, L. N. Pfeiffer, and K. W. West

Phys. Rev. B 71, 081301(R) – Published 8 February 2005

Abstract

We present measurements of the real diagonal microwave conductivity of the reentrant insulating quantum Hall phases in the first excited Landau level at temperatures below $50 mK$ . A resonance is detected around filling factor $ν = 2.58$ and weaker frequency dependence is seen at $ν = 2.42$ and 2.28. These measurements are consistent with the formation of a bubble phase crystal centered around these $ν$ at very low temperatures.

Received 24 November 2004

DOI:https://doi.org/10.1103/PhysRevB.71.081301

Authors & Affiliations

R. M. Lewis^1,2, Yong P. Chen^1,2, L. W. Engel¹, D. C. Tsui², L. N. Pfeiffer³, and K. W. West³

¹NHMFL, Florida State University, Tallahassee, Florida 32310, USA
²Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
³Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA

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Vol. 71, Iss. 8 — 15 February 2005

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Physical Review B

covering condensed matter and materials physics