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Transport properties of a spin-split two-dimensional electron gas in an quantum well structure
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View: Figures


Image of FIG. 1.
FIG. 1.

The dependence of the Hall electron density and the transport mobility.

Image of FIG. 2.
FIG. 2.

The experimentally deduced value of as a function of (open circles). The solid fitted curve (labeled “total”) reproduces the experimental data well and has two components: one due to scattering related to the remote ionized impurities and background ionized impurities combined (dotted line), and the other due to alloy disorder scattering (dashed line).

Image of FIG. 3.
FIG. 3.

(a) The SdH oscillations (open circles) as a function of the perpendicular -field for . The calculated trace is also shown (dashed line). (b) The experimental (open circles) and fitted (solid line) FT amplitudes for [see inset. a.u. means arbitrary units] also for . Solid lines in (a) and the inset of (b) are the calculated and traces respectively using fitting parameters from the FT amplitude versus frequency trace.

Image of FIG. 4.
FIG. 4.

The dependence of the quantum mobilities for the lower-energy (up-pointing triangles) and higher-energy (down-pointing triangles) spin subbands and the difference between these two quantum mobilities (open circles). The standard errors for the extracted quantum mobilities are estimated by setting the confidence limit to 90%. For clarity, only the “+” (“−”) error bars are given for the higher-(lower-) energy spin subband, and for each data point, the + and − errors are the same.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transport properties of a spin-split two-dimensional electron gas in an In0.53Ga0.47As∕InP quantum well structure