Abstract:The local density of states ͑DOS͒ of n-InAs͑110͒ is measured in the extreme quantum limit by lowtemperature scanning tunneling microscopy. Based on the general trends published previously ͓Phys. Rev. Lett. 86, 1582 ͑2001͔͒ we analyze the data in more detail. First the influence of the tip induced quantum dot is studied. It turns out that the observed serpentine structures are not correlated with the properties of the quantum dot, which lead us to the conclusion that they are caused by the three-dimensional ͑3D… Show more
“…Probably, a partial localization of the electrons parallel to the magnetic field arises in the extreme quantum limit prior to magnetic freeze out. This could lead to local 2D properties of the electrons [37]. Thus, electrons running along equipotential lines of the disorder also exist in 3D at sufficiently strong magnetic fields.…”
Section: Scanning Tunneling Spectroscopy On Semiconductorsmentioning
“…Probably, a partial localization of the electrons parallel to the magnetic field arises in the extreme quantum limit prior to magnetic freeze out. This could lead to local 2D properties of the electrons [37]. Thus, electrons running along equipotential lines of the disorder also exist in 3D at sufficiently strong magnetic fields.…”
Section: Scanning Tunneling Spectroscopy On Semiconductorsmentioning
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