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Zhang D, Huang X, Dietsche W, et al. Signatures for Wigner crystal formation in the chemical potential of a two-dimensional electron system. Phys Rev Lett. 2014;113(7):076804doi: 10.1103/PhysRevLett.113.076804.
Zhang, D., Huang, X., Dietsche, W., von Klitzing, K., & Smet, J. H. (2014). Signatures for Wigner crystal formation in the chemical potential of a two-dimensional electron system. Physical review letters, 113(7), 076804. https://doi.org/10.1103/PhysRevLett.113.076804
Zhang, Ding, et al. "Signatures for Wigner crystal formation in the chemical potential of a two-dimensional electron system." Physical review letters vol. 113,7 (2014): 076804. doi: https://doi.org/10.1103/PhysRevLett.113.076804
Zhang D, Huang X, Dietsche W, von Klitzing K, Smet JH. Signatures for Wigner crystal formation in the chemical potential of a two-dimensional electron system. Phys Rev Lett. 2014 Aug 15;113(7):076804. doi: 10.1103/PhysRevLett.113.076804. Epub 2014 Aug 14. PMID: 25170727.
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Phys Rev Lett. 2014 Aug 15;113(7):076804. doi: 10.1103/PhysRevLett.113.076804. Epub 2014 Aug 14.

Signatures for Wigner crystal formation in the chemical potential of a two-dimensional electron system.

Physical review letters

Ding Zhang, Xuting Huang, Werner Dietsche, Klaus von Klitzing, Jurgen H Smet

Affiliations

  1. Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany.

PMID: 25170727 DOI: 10.1103/PhysRevLett.113.076804

Abstract

We investigate the evolution of the chemical potential of a two-dimensional electron system (2DES) as a function of density at a fixed magnetic field. By using a bilayer system, changes in the chemical potential of one 2DES are determined from the density variation induced in the second, nearby 2DES. At high magnetic fields around a filling factor of ν=1 or ν=2, the chemical potential jump associated with the condensation in a quantum Hall state exhibits two anomalies symmetrically located around these integer filling factors. They are attributed to the formation of a 2D Wigner crystal of quasiparticles.

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