Magnetotransport in Zener tunneling regime in a high-mobility two-dimensional hole gas

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

doi:10.1103/PhysRevB.80.041310

Magnetotransport in Zener tunneling regime in a high-mobility two-dimensional hole gas

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

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12 Scopus citations

Abstract

In a high-mobility two-dimensional hole gas (2DHG) in C-doped (001) GaAs/ Al0.4 Ga0.6 As quantum wells, we observe sharp features in the differential magnetoresistance, which we interpret as the Zener-tunneling peak and valley associated with the commensuration transition of Landau orbits. Comparison of data with that in GaAs/ Al0.3 Ga0.7 As 2D electron gas suggests that the amplitude of Zener oscillations in a 2DHG is strongly damped. The data indicate the significant role of band structures in nonlinear transport in 2D electronic systems.

Original language	English (US)
Article number	041310
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.80.041310
State	Published - Aug 6 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.80.041310

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title = "Magnetotransport in Zener tunneling regime in a high-mobility two-dimensional hole gas",

abstract = "In a high-mobility two-dimensional hole gas (2DHG) in C-doped (001) GaAs/ Al0.4 Ga0.6 As quantum wells, we observe sharp features in the differential magnetoresistance, which we interpret as the Zener-tunneling peak and valley associated with the commensuration transition of Landau orbits. Comparison of data with that in GaAs/ Al0.3 Ga0.7 As 2D electron gas suggests that the amplitude of Zener oscillations in a 2DHG is strongly damped. The data indicate the significant role of band structures in nonlinear transport in 2D electronic systems.",

author = "Yanhua Dai and Yuan, {Z. Q.} and Yang, {C. L.} and Du, {R. R.} and Manfra, {M. J.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "2009",

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doi = "10.1103/PhysRevB.80.041310",

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T1 - Magnetotransport in Zener tunneling regime in a high-mobility two-dimensional hole gas

AU - Dai, Yanhua

AU - Yuan, Z. Q.

AU - Yang, C. L.

AU - Du, R. R.

AU - Manfra, M. J.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2009/8/6

Y1 - 2009/8/6

N2 - In a high-mobility two-dimensional hole gas (2DHG) in C-doped (001) GaAs/ Al0.4 Ga0.6 As quantum wells, we observe sharp features in the differential magnetoresistance, which we interpret as the Zener-tunneling peak and valley associated with the commensuration transition of Landau orbits. Comparison of data with that in GaAs/ Al0.3 Ga0.7 As 2D electron gas suggests that the amplitude of Zener oscillations in a 2DHG is strongly damped. The data indicate the significant role of band structures in nonlinear transport in 2D electronic systems.

AB - In a high-mobility two-dimensional hole gas (2DHG) in C-doped (001) GaAs/ Al0.4 Ga0.6 As quantum wells, we observe sharp features in the differential magnetoresistance, which we interpret as the Zener-tunneling peak and valley associated with the commensuration transition of Landau orbits. Comparison of data with that in GaAs/ Al0.3 Ga0.7 As 2D electron gas suggests that the amplitude of Zener oscillations in a 2DHG is strongly damped. The data indicate the significant role of band structures in nonlinear transport in 2D electronic systems.

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Magnetotransport in Zener tunneling regime in a high-mobility two-dimensional hole gas

Abstract

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