Nonplanar two-dimensional electron gases in InAs heterostructures on GaAs

Löhr, S.; Heyn, Ch.; Hansen, W.
January 2004
Applied Physics Letters;1/26/2004, Vol. 84 Issue 4, p550
Academic Journal
Using transport measurements in tilted magnetic fields we observe direct evidence of a nonplanar electron system in an InAs/InGaAs quantum well. The corrugation results from the lattice-mismatched epitaxial growth of the heterostructure on a GaAs substrate. We argue that the curvature of the electron system may result in an appreciable effective spin-orbit interaction. © 2004 American Institute of Physics.


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