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Title
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Inter and intrasubband transitions via lo phonons in quantum wires
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Author
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Abstract
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| We investigate the effects of the finite confining potential V0 on the absorption and emission scattering rates of electrons interacting with LO phonons for a cylindrical GaAs quantum wire. The emission rates are qualitatively similar to those of the 2D case. The absorption rates on the other hand exhibit two different regimes: 1) for a wire radius smaller than a certain value (80 Å in the case where V0 = 190 meV) the behavior is similar to the 2D and 3D analogues, but 2) for larger radius the absorption rates initially increase with increasing energy, reach a maximum value and then decrease monotonicaly. A complete study is made as a function of wire radius, and electron energy. |
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Language
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English
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Source (journal)
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Superlattices and microstructures. - London
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Publication
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London
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1993
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ISSN
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0749-6036
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Volume/pages
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13
:1
(1993)
, p. 37-40
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ISI
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A1993KK13700007
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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