InAs-AlSb quantum wells in tilted magnetic fields

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

doi:10.1103/PhysRevB.61.13045

InAs-AlSb quantum wells in tilted magnetic fields

Mesoscale and Nanoscale Physics 2009-10-31 v1

Authors: 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.

Keywords

spin physics in semiconductors quantum wells

Cite

@article{arxiv.cond-mat/0005291,
  title  = {InAs-AlSb quantum wells in tilted magnetic fields},
  author = {S. Brosig and K. Ensslin and A. G. Jansen and C. Nguyen and B. Brar and M. Thomas and H. Kroemer},
  journal= {arXiv preprint arXiv:cond-mat/0005291},
  year   = {2009}
}

InAs-AlSb quantum wells in tilted magnetic fields

Abstract

Keywords

Cite

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