Physics – Condensed Matter
Scientific paper
1993-08-12
Physics
Condensed Matter
LaTeX, 9 pages, 7 figs. available on request from smrcka@fzu.cs in 1 PS file (compressed and uuencoded)
Scientific paper
10.1006/spmi.1993.1093
The capacitance of a double-heterojunction structure with a wide GaAs undoped layer embedded between two selectively doped AlGaAs barriers is calculated self-consistently as a function of intensity of the in-plane magnetic field. With increasing field intensity the capacitance initially increases and after reaching a maximum decreases toward a high field limit which is less than its zero field value. This behaviour is attributed to 'breathing', or charge redistribution, of the 2D electron gas at individual heterojunctions due to a combination of the confining potential and the magnetic field.
Jungwirth Tomas
Smrcka Ludvik
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