Landau level spectrum in a two-dimensional hole gas in C-doped (100) GaAs/ Al0.4Ga0.6 As square quantum well

Z. Q. Yuan; R. R. Du; M. J. Manfra; L. N. Pfeiffer; K. W. West

doi:10.1063/1.3077147

Landau level spectrum in a two-dimensional hole gas in C-doped (100) GaAs/ Al_0.4Ga_0.6 As square quantum well

Z. Q. Yuan, R. R. Du, M. J. Manfra, L. N. Pfeiffer, K. W. West

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

13 Scopus citations

Abstract

We study the Landau level spectrum of a two-dimensional hole gas in carbon δ -doped (100) GaAs/ Al0.4 Ga0.6 As square quantum well (width of 15 nm) by means of microwave cyclotron resonance (CR) and tilted field magnetotransport. Only one type of hole, with an effective mass of 0.4 me, was detected in CR. By analyzing the spin-splitting level coincident conditions at B∼1 T, we find that the effective g -factor is large enough to cause Landau level crossing even in zero tilt, and the product of g m* increases with total magnetic field.

Original language	English (US)
Article number	052103
Journal	Applied Physics Letters
Volume	94
Issue number	5
DOIs	https://doi.org/10.1063/1.3077147
State	Published - 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3077147

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title = "Landau level spectrum in a two-dimensional hole gas in C-doped (100) GaAs/ Al0.4Ga0.6 As square quantum well",

abstract = "We study the Landau level spectrum of a two-dimensional hole gas in carbon δ -doped (100) GaAs/ Al0.4 Ga0.6 As square quantum well (width of 15 nm) by means of microwave cyclotron resonance (CR) and tilted field magnetotransport. Only one type of hole, with an effective mass of 0.4 me, was detected in CR. By analyzing the spin-splitting level coincident conditions at B∼1 T, we find that the effective g -factor is large enough to cause Landau level crossing even in zero tilt, and the product of g m* increases with total magnetic field.",

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AU - Yuan, Z. Q.

AU - Du, R. R.

AU - Manfra, M. J.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2009

Y1 - 2009

N2 - We study the Landau level spectrum of a two-dimensional hole gas in carbon δ -doped (100) GaAs/ Al0.4 Ga0.6 As square quantum well (width of 15 nm) by means of microwave cyclotron resonance (CR) and tilted field magnetotransport. Only one type of hole, with an effective mass of 0.4 me, was detected in CR. By analyzing the spin-splitting level coincident conditions at B∼1 T, we find that the effective g -factor is large enough to cause Landau level crossing even in zero tilt, and the product of g m* increases with total magnetic field.

AB - We study the Landau level spectrum of a two-dimensional hole gas in carbon δ -doped (100) GaAs/ Al0.4 Ga0.6 As square quantum well (width of 15 nm) by means of microwave cyclotron resonance (CR) and tilted field magnetotransport. Only one type of hole, with an effective mass of 0.4 me, was detected in CR. By analyzing the spin-splitting level coincident conditions at B∼1 T, we find that the effective g -factor is large enough to cause Landau level crossing even in zero tilt, and the product of g m* increases with total magnetic field.

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ER -

Landau level spectrum in a two-dimensional hole gas in C-doped (100) GaAs/ Al_0.4Ga_0.6 As square quantum well

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