Next figures show typical shapes of these edges. Angle dependence of the morphology of InP and InGaAs growths found AFM picture of the surface of 500 nm InP buffer layer.
Figures show resist deposition at various conditions.
Masks of final InP vector Hall probe were designed. Galvanomagnetic laboratory is rebuild and automatized to speed up mobility measurements in dependece on temperature. Three Hall probes in an arrangement that is sufficient for the vector-evaluation function. Noise properties of planar micro-Hall probes tested in dependence on temperature, current, magnetic field and frequency Strenge behaviour of the noise of 2mm Hall probe vs magnetic field was observed at low temperatures. The low frequency part of the noise spectra was strongly supressed at magnetic field 1 - 3 T. Monte Carlo modelling of this effect will be prepared in near future 5.