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Observation of an Anisotropic Wigner Crystal

Author(s): Liu, Yang; Hasdemir, S; Pfeiffer, LN; West, KW; Baldwin, KW; et al

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Abstract: We report a new correlated phase of two-dimensional charged carriers in high magnetic fields, manifested by an anisotropic insulating behavior at low temperatures. It appears in a large range of low Landau level fillings 1/3ν 2/3 in hole systems confined to wide GaAs quantum wells when the sample is tilted in magnetic field to an intermediate angle. The parallel field component (B) leads to a crossing of the lowest two Landau levels, and an elongated hole wave function in the direction of B. Under these conditions, the in-plane resistance exhibits an insulating behavior, with the resistance along B about 10 times smaller than the resistance perpendicular to B. We interpret this anisotropic insulating phase as a two-component, striped Wigner crystal.
Publication Date: Aug-2016
Electronic Publication Date: 30-Aug-2016
Citation: Liu, Yang, Hasdemir, S, Pfeiffer, LN, West, KW, Baldwin, KW, Shayegan, M. (2016). Observation of an Anisotropic Wigner Crystal. Physical Review Letters, 117 (10), 10.1103/PhysRevLett.117.106802
DOI: doi:10.1103/PhysRevLett.117.106802
ISSN: 0031-9007
EISSN: 1079-7114
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review Letters
Version: Author's manuscript

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