Metal-insulator oscillations in a two-dimensional electron-hole system

Robin J Nicholas; Kei Takashina; Mohammed Lakrimi; Beata Kardynal; Songwon Khym; Nigel J Mason; David M Symons; Duncan K Maude; Jean Claude Portal

doi:10.1103/PhysRevLett.85.2364

Metal-insulator oscillations in a two-dimensional electron-hole system

Robin J Nicholas, Kei Takashina, Mohammed Lakrimi, Beata Kardynal, Songwon Khym, Nigel J Mason, David M Symons, Duncan K Maude, Jean Claude Portal

Department of Physics

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

24 Citations (SciVal)

Abstract

The electrical transport properties of a bipolar InAs/GaSb system have been studied in a magnetic field. The resistivity oscillates between insulating and metallic behavior while the quantum Hall effect shows a digital character oscillating from 0 to 1 conductance quantum e2/h. The insulating behavior is attributed to the formation of a total energy gap in the system. A novel looped edge state picture is proposed associated with the appearance of a voltage between Hall probes which is symmetric on magnetic field reversal.

Original language	English
Pages (from-to)	2364-2367
Journal	Physical Review Letters
Volume	85
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.85.2364
Publication status	Published - 11 Sept 2000

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10.1103/PhysRevLett.85.2364

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abstract = "The electrical transport properties of a bipolar InAs/GaSb system have been studied in a magnetic field. The resistivity oscillates between insulating and metallic behavior while the quantum Hall effect shows a digital character oscillating from 0 to 1 conductance quantum e2/h. The insulating behavior is attributed to the formation of a total energy gap in the system. A novel looped edge state picture is proposed associated with the appearance of a voltage between Hall probes which is symmetric on magnetic field reversal.",

author = "Nicholas, {Robin J} and Kei Takashina and Mohammed Lakrimi and Beata Kardynal and Songwon Khym and Mason, {Nigel J} and Symons, {David M} and Maude, {Duncan K} and Portal, {Jean Claude}",

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AU - Nicholas, Robin J

AU - Takashina, Kei

AU - Lakrimi, Mohammed

AU - Kardynal, Beata

AU - Khym, Songwon

AU - Mason, Nigel J

AU - Symons, David M

AU - Maude, Duncan K

AU - Portal, Jean Claude

PY - 2000/9/11

Y1 - 2000/9/11

N2 - The electrical transport properties of a bipolar InAs/GaSb system have been studied in a magnetic field. The resistivity oscillates between insulating and metallic behavior while the quantum Hall effect shows a digital character oscillating from 0 to 1 conductance quantum e2/h. The insulating behavior is attributed to the formation of a total energy gap in the system. A novel looped edge state picture is proposed associated with the appearance of a voltage between Hall probes which is symmetric on magnetic field reversal.

AB - The electrical transport properties of a bipolar InAs/GaSb system have been studied in a magnetic field. The resistivity oscillates between insulating and metallic behavior while the quantum Hall effect shows a digital character oscillating from 0 to 1 conductance quantum e2/h. The insulating behavior is attributed to the formation of a total energy gap in the system. A novel looped edge state picture is proposed associated with the appearance of a voltage between Hall probes which is symmetric on magnetic field reversal.

UR - http://dx.doi.org/10.1103/PhysRevLett.85.2364

U2 - 10.1103/PhysRevLett.85.2364

DO - 10.1103/PhysRevLett.85.2364

M3 - Article

SN - 0031-9007

VL - 85

SP - 2364

EP - 2367

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

ER -

Metal-insulator oscillations in a two-dimensional electron-hole system

Abstract

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