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InAs-AlSb quantum wells in tilted magnetic fields

S. Brosig·K. Ensslin·A. G. Jansen·C. Nguyen·B. Brar·M. Thomas·H. Kroemer
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Abstract

InAs-AlSb quantum wells are investigated by transport experiments in magnetic fields tilted with respect to the sample normal. Using the coincidence method we find for magnetic fields up to 28 T that the spin splitting can be as large as 5 times the Landau splitting. We find a value of the g-factor of about 13. For small even-integer filling factors the corresponding minima in the Shubnikov-de Haas oscillations cannot be tuned into maxima for arbitrary tilt angles. This indicates the anti-crossing of neighboring Landau and spin levels. Furthermore we find for particular tilt angles a crossover from even-integer dominated Shubnikov-de Haas minima to odd-integer minima as a function of magnetic field.

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S. Brosig, K. Ensslin, A. G. Jansen, C. Nguyen, B. Brar, M. Thomas, H. Kroemer. 2000-05-18. InAs-AlSb quantum wells in tilted magnetic fields. https://doi.org/10.1103/physrevb.61.13045

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