Magneto-optical evidence for depinning of the Wigner crystal by an electric field

I. V. Kukushkin; N. J. Pulsford; K. Von Klitzing; K. Ploog; R. J. Haug; S. Koch; V. B. Timofeev

doi:10.1103/PhysRevB.45.4532

Magneto-optical evidence for depinning of the Wigner crystal by an electric field

I. V. Kukushkin, N. J. Pulsford, K. Von Klitzing, K. Ploog, R. J. Haug, S. Koch, V. B. Timofeev

Optical Sciences, College of

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41 Scopus citations

Abstract

We investigate the influence of an electric field on the radiative recombination of two-dimensional electrons in the Wigner-solid regime. We find a threshold enhancement of the intensity of the luminescence accompanied by the appearance of noise, which we associate with a sliding of the pinned Wigner solid by the electric field. Our results indicate that the melting of the Wigner solid occurs in two steps and can be characterized by two critical temperatures.

Original language	English (US)
Pages (from-to)	4532-4535
Number of pages	4
Journal	Physical Review B
Volume	45
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.45.4532
State	Published - Jan 1 1992

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ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Kukushkin, I. V., Pulsford, N. J., Von Klitzing, K., Ploog, K., Haug, R. J., Koch, S., & Timofeev, V. B. (1992). Magneto-optical evidence for depinning of the Wigner crystal by an electric field. Physical Review B, 45(8), 4532-4535. https://doi.org/10.1103/PhysRevB.45.4532

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abstract = "We investigate the influence of an electric field on the radiative recombination of two-dimensional electrons in the Wigner-solid regime. We find a threshold enhancement of the intensity of the luminescence accompanied by the appearance of noise, which we associate with a sliding of the pinned Wigner solid by the electric field. Our results indicate that the melting of the Wigner solid occurs in two steps and can be characterized by two critical temperatures.",

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AU - Pulsford, N. J.

AU - Von Klitzing, K.

AU - Ploog, K.

AU - Haug, R. J.

AU - Koch, S.

AU - Timofeev, V. B.

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AB - We investigate the influence of an electric field on the radiative recombination of two-dimensional electrons in the Wigner-solid regime. We find a threshold enhancement of the intensity of the luminescence accompanied by the appearance of noise, which we associate with a sliding of the pinned Wigner solid by the electric field. Our results indicate that the melting of the Wigner solid occurs in two steps and can be characterized by two critical temperatures.

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10.1103/PhysRevB.45.4532