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Determination of significant transport parameters of two-dimensional electron gas systems by microwave methods (1997)

Brensing, A. ; Mazloom-Tehrani, M. ; Bauhofer, W.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 70 (1997), S. 3128-3130

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: The main transport parameters of a two-dimensional electron gas (2DEG) system, namely, the effective mass m*, electron sheet concentration ns, transport lifetime τc, and quantum lifetime τq, were determined exclusively by contactless microwave transmission methods in the frequency range 26.5–40 GHz. Shubnikov–de Haas oscillations were detected by measuring σxx with parallel waveguides while crossed waveguides were used for Hall measurements. The microwave results are in good agreement with values obtained from conventional direct current investigations. The 2DEG is realized in a modulation doped InGaAs/InP double heterostructure. © 1997 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.119205

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