Hybridization of optical phonons with double quantum-wire plasmons including drift instabilities |
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| Authors: | Vassilios Fessatidis Norman JM Horing |
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| Institution: | aPhysics Department, Fordham University, Bronx, New York 10458, USA;bDepartment of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, NJ 07030, USA |
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| Abstract: | We examine the collective mode spectrum for a double quantum-wire system embedded in semi-infinite polar medium, taking account of the role of optical phonons in interaction with the double quantum-wire plasmons and bulk/surface plasmons. The collective mode frequencies are exhibited as functions of qx (wavenumber parallel to the wires) and as functions of z0 (distance of first wire from the interface). We also find that the region of drift instability of the collective modes is split into two disjoint regions of instability by the optical phonons, with a region of stability between them. |
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| Keywords: | Double quantom wire plasmons Phonons Drift instability |
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