Insulator, semiclassical oscillations and quantum Hall liquids at low magnetic fields

Shun Tsung Lo; Yi Ting Wang; G. Bohra; E. Comfort; T. Y. Lin; M. G. Kang; G. Strasser; J. P. Bird; C. F. Huang; Li Hung Lin; J. C. Chen; C. T. Liang

doi:10.1088/0953-8984/24/40/405601

Insulator, semiclassical oscillations and quantum Hall liquids at low magnetic fields

Shun Tsung Lo
, Yi Ting Wang
, G. Bohra
, E. Comfort
, T. Y. Lin
, M. G. Kang
, G. Strasser
, J. P. Bird
, C. F. Huang
, Li Hung Lin
, J. C. Chen
, C. T. Liang

Department of Electrical Engineering

National Taiwan University
SUNY Buffalo
Industrial Technology Research Institute of Taiwan
National Chiayi University
National Tsing Hua University

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

9 Scopus citations

Abstract

Magneto-transport measurements are performed on two-dimensional GaAs electron systems to probe the quantum Hall (QH) effect at low magnetic fields. Oscillations following the Shubnikov-de Haas (SdH) formula are observed in the transition from the insulator to QH liquid when the observed almost temperature-independent Hall slope indicates insignificant interaction correction. Our study shows that the existence of SdH oscillations in such a transition can be understood based on the non-interacting model.

Original language	English
Article number	405601
Journal	Journal of Physics Condensed Matter
Volume	24
Issue number	40
DOIs	https://doi.org/10.1088/0953-8984/24/40/405601
State	Published - Oct 10 2012

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title = "Insulator, semiclassical oscillations and quantum Hall liquids at low magnetic fields",

abstract = "Magneto-transport measurements are performed on two-dimensional GaAs electron systems to probe the quantum Hall (QH) effect at low magnetic fields. Oscillations following the Shubnikov-de Haas (SdH) formula are observed in the transition from the insulator to QH liquid when the observed almost temperature-independent Hall slope indicates insignificant interaction correction. Our study shows that the existence of SdH oscillations in such a transition can be understood based on the non-interacting model.",

author = "Lo, \{Shun Tsung\} and Wang, \{Yi Ting\} and G. Bohra and E. Comfort and Lin, \{T. Y.\} and Kang, \{M. G.\} and G. Strasser and Bird, \{J. P.\} and Huang, \{C. F.\} and Lin, \{Li Hung\} and Chen, \{J. C.\} and Liang, \{C. T.\}",

year = "2012",

month = oct,

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doi = "10.1088/0953-8984/24/40/405601",

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T1 - Insulator, semiclassical oscillations and quantum Hall liquids at low magnetic fields

AU - Lo, Shun Tsung

AU - Wang, Yi Ting

AU - Bohra, G.

AU - Comfort, E.

AU - Lin, T. Y.

AU - Kang, M. G.

AU - Strasser, G.

AU - Bird, J. P.

AU - Huang, C. F.

AU - Lin, Li Hung

AU - Chen, J. C.

AU - Liang, C. T.

PY - 2012/10/10

Y1 - 2012/10/10

N2 - Magneto-transport measurements are performed on two-dimensional GaAs electron systems to probe the quantum Hall (QH) effect at low magnetic fields. Oscillations following the Shubnikov-de Haas (SdH) formula are observed in the transition from the insulator to QH liquid when the observed almost temperature-independent Hall slope indicates insignificant interaction correction. Our study shows that the existence of SdH oscillations in such a transition can be understood based on the non-interacting model.

AB - Magneto-transport measurements are performed on two-dimensional GaAs electron systems to probe the quantum Hall (QH) effect at low magnetic fields. Oscillations following the Shubnikov-de Haas (SdH) formula are observed in the transition from the insulator to QH liquid when the observed almost temperature-independent Hall slope indicates insignificant interaction correction. Our study shows that the existence of SdH oscillations in such a transition can be understood based on the non-interacting model.

UR - https://www.scopus.com/pages/publications/84866513626

U2 - 10.1088/0953-8984/24/40/405601

DO - 10.1088/0953-8984/24/40/405601

M3 - Article

C2 - 22968955

AN - SCOPUS:84866513626

SN - 0953-8984

VL - 24

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 40

M1 - 405601

ER -

Insulator, semiclassical oscillations and quantum Hall liquids at low magnetic fields

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