Collective Nature of the Reentrant Integer Quantum Hall States in the Second Landau Level

N. Deng, Purdue University
A. Kumar, Purdue University
Michael J. Manfra, Birck Nanotechnology Center, Purdue University
L. N. Pfeiffer, Princeton University
K. W. West, Princeton University
Gabor A. Csathy, Purdue University

Date of this Version

2-23-2012

Citation

Collective Nature of the Reentrant Integer Quantum Hall States in the Second Landau Level N. Deng, A. Kumar, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. A. Csáthy Phys. Rev. Lett. 108, 086803 – Published 23 February 2012

Comments

This is the published version of N. Deng, A. Kumar, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. A. Csáthy. (date). Collective Nature of the Reentrant Integer Quantum Hall States in the Second Landau Level. First published in the Physical Review Letters and is available online at: https://doi.org/10.1103/PhysRevLett.108.086803

Abstract

We report an unexpected sharp peak in the temperature dependence of the magnetoresistance of the reentrant integer quantum Hall states in the second Landau level. This peak defines the onset temperature of these states. We find that in different spin branches the onset temperatures of the reentrant states scale with the Coulomb energy. This scaling provides direct evidence that Coulomb interactions play an important role in the formation of these reentrant states evincing their collective nature.

Discipline(s)

Nanoscience and Nanotechnology

 

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