On Transport in Heterostructures within the Independent-Particle Picture
We use a fully self-consistent model for the I–V characteristic of quantum-heterostructures to investigate effects of the carrier-carrier interaction within the mean-field approximation. We compare the Hartree approximation with two models which account for exchange-correlation effects within the local density approximation. We find that the Hartree term provides the dominant correction to the shape of the I–V curve, while exchange-correlation effects merely narrow the width of the bistable-voltage region.
KeywordsBuffer Layer Local Density Approximation Resonant Tunneling Double Barrier Hartree Approximation
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- 5.G. A. Toombs, E. S. Alves, L. Eaves, T. J. Foster, M. Henini, O. H. Hughes, M. L. Leadbeater, C. A. Payling, F. W. Sheard, P. A. Claxton, G. Hill, M. A. Pate, and J. C. Portal, The fourteenth International Symposium on Gallium Arsenide and Related Compounds, Crete, 1987, Inst.Phys.Conf.Ser.No.91, ed. by A. Christou and H. S. Rupprecht, (IOP, Briston, 1988) p.581Google Scholar
- 7b.H. A. Bethe and R. Jackiw, Intermediate Quantum Mechanics, 2nd ed. (Benjamin, London, 1968)Google Scholar
- 9.N. W. Ashcroft and N. D. Mermin, Solid State Physics, (Holt, Rinehart and Winston, NY, 1976)Google Scholar
- 10.D.N. Zubarev, Nonequilibrium Statistical Thermodynamics (Consultants Bureau, NY, 1974)Google Scholar