✦ LIBER ✦

Solitons in superlattices: A tight-binding approach

✍ Scribed by Qiang Tian; Changshu Wu

Book ID: 104337770
Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 39 KB
Volume: 262
Category: Article
ISSN: 0375-9601
DOI: 10.1016/s0375-9601(99)00603-9

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✦ Synopsis

We present a tight-binding approach of the soliton formations and propagations in superlattices. Negative differential conductivity in superlattices leads to the growth of the inevitable spatial fluctuations and formation of the electron accumulation-layer domain. Based on the negative differential conductivity, it is shown that the envelope of the tight-binding-approach wave functions is governed by the nonlinear Schrodinger equation which has soliton solutions, the result of which suggests soliton formations and propagations in the superlattices.

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