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

Research output: Contribution to journalArticle

22 Citations (Scopus)

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 languageEnglish
Pages (from-to)2364-2367
JournalPhysical Review Letters
Volume85
Issue number11
DOIs
Publication statusPublished - 11 Sep 2000

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insulators
oscillations
quantum Hall effect
magnetic fields
metals
transport properties
electrical resistivity
probes
electric potential

Cite this

Nicholas, R. J., Takashina, K., Lakrimi, M., Kardynal, B., Khym, S., Mason, N. J., ... Portal, J. C. (2000). Metal-insulator oscillations in a two-dimensional electron-hole system. Physical Review Letters, 85(11), 2364-2367. https://doi.org/10.1103/PhysRevLett.85.2364

Metal-insulator oscillations in a two-dimensional electron-hole system. / Nicholas, Robin J; Takashina, Kei; Lakrimi, Mohammed; Kardynal, Beata; Khym, Songwon; Mason, Nigel J; Symons, David M; Maude, Duncan K; Portal, Jean Claude.

In: Physical Review Letters, Vol. 85, No. 11, 11.09.2000, p. 2364-2367.

Research output: Contribution to journalArticle

Nicholas, RJ, Takashina, K, Lakrimi, M, Kardynal, B, Khym, S, Mason, NJ, Symons, DM, Maude, DK & Portal, JC 2000, 'Metal-insulator oscillations in a two-dimensional electron-hole system', Physical Review Letters, vol. 85, no. 11, pp. 2364-2367. https://doi.org/10.1103/PhysRevLett.85.2364
Nicholas, Robin J ; Takashina, Kei ; Lakrimi, Mohammed ; Kardynal, Beata ; Khym, Songwon ; Mason, Nigel J ; Symons, David M ; Maude, Duncan K ; Portal, Jean Claude. / Metal-insulator oscillations in a two-dimensional electron-hole system. In: Physical Review Letters. 2000 ; Vol. 85, No. 11. pp. 2364-2367.
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