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Design of quasi-lateral p-n junction for optical spin-detection in low-dimensional systems
B. Kaestner, D. G. Hasko, D. A. Williams
A technology is reviewed which allows one to produce quasi-lateral 2D electron and hole gas junctions of arbitrary shape. It may be implemented in a variety of semiconductor hetero…
Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
Joerg Wunderlich, Bernd Kaestner, Jairo Sinova +1
We report the experimental observation of the spin-Hall effect in a two-dimensional (2D) hole system with Rashba spin-orbit coupling. The 2D hole layer is a part of a p-n junction…
Mapping the potential within a nanoscale undoped GaAs region using a scanning electron microscope
B. Kaestner, C. Rodenburg, C. J. Humphreys
Semiconductor dopant profiling using secondary electron imaging in a scanning electron microscope (SEM) has been developed in recent years. In this paper, we show that the mechanis…