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Strings and stripes in ionic solids
We demonstrate the existence of strings or electronic molecules in narrow band ionic insulators arising purely from the Fröhlich electron–phonon interaction alone. The system is in an inhomogeneous state in a wide range of physically interesting parameters, where the electronic molecules may coexist...
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Published in: | Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2003-05, Vol.18 (1), p.352-353, Article 352 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We demonstrate the existence of strings or electronic molecules in narrow band ionic insulators arising purely from the Fröhlich electron–phonon interaction alone. The system is in an inhomogeneous state in a wide range of physically interesting parameters, where the electronic molecules may coexist with the Fermi liquid. We show that conditions for string existence, the string length and the number of self-trapped particles depend on the electron(hole) conduction bandwidth and on the ratio of high frequency and static dielectric constants. |
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ISSN: | 1386-9477 1873-1759 |
DOI: | 10.1016/S1386-9477(02)01091-3 |