Regensburg 2002 – wissenschaftliches Programm

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HL: Halbleiterphysik

HL 11: Poster 1

HL 11.4: Poster

Montag, 11. März 2002, 17:00–19:30, Poster A

Fractional-dimensional space approach for confined polarons — •A. Matos-Abiague — Max-Planck Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany

Polarons confined in rectangular and parabolic quantum wells, and in parabolic quantum well wires are studied within the framework of the fractional-dimensional space approach. In this scheme, the real confined “polaron plus confining potential” system is mapped into an effective fractional-dimensional bulk in which the polaron behaves unconfined, and the fractional dimension is essentially related to the degree of confinement of the actual system. Analytical expressions allowing a very simple estimation of the corresponding polaron corrections are found. The fractional-dimensional theoretical results are shown to be in good agreement with previous more detailed calculations.