Stability of low-dimensionally-confined bipolarons

R.T. Senger and A. Erçelebi

The European Physical Journal B: Condensed Matter and Complex Systems, 2000, vol. 16, issue 3, 439-446

Abstract: In the limit of strong electron-phonon coupling, we provide a unified insight into the stability criterion for bipolaron formation in low-dimensionally confined media. The model that we use consists of a pair of electrons immersed in a reservoir of bulk LO phonons and confined within an anisotropic parabolic potential box, whose barrier slopes can be tuned arbitrarily from zero to infinity. Thus, encompassing the bulk and all low-dimensional geometric configurations of general interest, we obtain an explicit tracking of the critical ratio η c of dielectric constants below which bipolarons can exist. Copyright EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2000

Keywords: PACS. 71.38.+i Polarons and electron-phonon interactions (search for similar items in EconPapers)
Date: 2000
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DOI: 10.1007/s100510070201

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