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Magnetic field dependence of valley splitting in realistic quantum wells
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10.1063/1.2387975
/content/aip/journal/apl/89/20/10.1063/1.2387975
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/20/10.1063/1.2387975
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Quantum well step geometry, with crystalographic axes and rotated axes , where .

Image of FIG. 2.
FIG. 2.

(a) Randomly generated step edge profile, with alternating smooth and rough step edges. The circle shows the wave function radius for , centered at the position of the valley splitting maximum. (b) Simulation results for the valley splitting (solid lines). Experimental data points (circles) are taken from Ref. 10. The top three curves assume the same “large” amplitude of step fluctuations, with different step-bunching parameters. From top to bottom: (i) strong bunching, (ii) weak bunching, (iii) no bunching, and (iv) fluctuation amplitude reduced by a factor of 5. Note that the top curve corresponds to the disorder realization in (a).

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/content/aip/journal/apl/89/20/10.1063/1.2387975
2006-11-13
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic field dependence of valley splitting in realistic Si∕SiGe quantum wells
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/20/10.1063/1.2387975
10.1063/1.2387975
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