Observation of a giant dielectric constant in the re-entrant insulating phase of two-dimensional electrons

Y. P. Li; D. C. Tsui; T. Sajoto; L. W. Engel; M. Santos; M. Shayegan

doi:10.1016/0038-1098(95)00319-3

Observation of a giant dielectric constant in the re-entrant insulating phase of two-dimensional electrons

Y. P. Li, D. C. Tsui, T. Sajoto, L. W. Engel, M. Santos, M. Shayegan

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We have measured the radio frequency Reσ_xx and Imσ_xx of a high mobility two-dimensional electron system (2DES) and observed a giant dielectric constant (κ_xx > 1 × 10⁴) in the reentrant insulating phase (RIP) around the 1 5 fractional quantum Hall liquid. Results from temperature and excitation-level studies provide new evidence for the Wigner crystal (WC) model of the RIP, where the WC is strongly pinned by residual impurities in close proximity to the 2DES.

Original language	English (US)
Pages (from-to)	619-623
Number of pages	5
Journal	Solid State Communications
Volume	95
Issue number	9
DOIs	https://doi.org/10.1016/0038-1098(95)00319-3
State	Published - Sep 1995

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

Keywords

A. heterojunction
D. fractional quantum Hall effect
D. quantum localization

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10.1016/0038-1098(95)00319-3

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title = "Observation of a giant dielectric constant in the re-entrant insulating phase of two-dimensional electrons",

abstract = "We have measured the radio frequency Reσxx and Imσxx of a high mobility two-dimensional electron system (2DES) and observed a giant dielectric constant (κxx > 1 × 104) in the reentrant insulating phase (RIP) around the 1 5 fractional quantum Hall liquid. Results from temperature and excitation-level studies provide new evidence for the Wigner crystal (WC) model of the RIP, where the WC is strongly pinned by residual impurities in close proximity to the 2DES.",

keywords = "A. heterojunction, D. fractional quantum Hall effect, D. quantum localization",

author = "Li, {Y. P.} and Tsui, {D. C.} and T. Sajoto and Engel, {L. W.} and M. Santos and M. Shayegan",

year = "1995",

month = sep,

doi = "10.1016/0038-1098(95)00319-3",

language = "English (US)",

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TY - JOUR

T1 - Observation of a giant dielectric constant in the re-entrant insulating phase of two-dimensional electrons

AU - Li, Y. P.

AU - Tsui, D. C.

AU - Sajoto, T.

AU - Engel, L. W.

AU - Santos, M.

AU - Shayegan, M.

PY - 1995/9

Y1 - 1995/9

N2 - We have measured the radio frequency Reσxx and Imσxx of a high mobility two-dimensional electron system (2DES) and observed a giant dielectric constant (κxx > 1 × 104) in the reentrant insulating phase (RIP) around the 1 5 fractional quantum Hall liquid. Results from temperature and excitation-level studies provide new evidence for the Wigner crystal (WC) model of the RIP, where the WC is strongly pinned by residual impurities in close proximity to the 2DES.

AB - We have measured the radio frequency Reσxx and Imσxx of a high mobility two-dimensional electron system (2DES) and observed a giant dielectric constant (κxx > 1 × 104) in the reentrant insulating phase (RIP) around the 1 5 fractional quantum Hall liquid. Results from temperature and excitation-level studies provide new evidence for the Wigner crystal (WC) model of the RIP, where the WC is strongly pinned by residual impurities in close proximity to the 2DES.

KW - A. heterojunction

KW - D. fractional quantum Hall effect

KW - D. quantum localization

UR - http://www.scopus.com/inward/record.url?scp=0029379267&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029379267&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(95)00319-3

DO - 10.1016/0038-1098(95)00319-3

M3 - Article

AN - SCOPUS:0029379267

SN - 0038-1098

VL - 95

SP - 619

EP - 623

JO - Solid State Communications

JF - Solid State Communications

IS - 9

ER -

Observation of a giant dielectric constant in the re-entrant insulating phase of two-dimensional electrons

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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