Normalization of interface optical phonon modes in cylindrical quantum wires with semiconductor-semiconductor and metal-semiconductor boundary conditions |
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| Affiliation: | Department of Electrical Engineering, Duke University Durham, NC 27708-0291 and U.S. Army Research Office, P.O. Box 12211 Research Triangle Park, NC 27709-2211;Department of Physical Science and Technology, Inner Mongolia University, Hohhot, PR China;School of Microelectronics, Xidian University, Xi''an, 710071, China;Department of Solid State Physics, Yerevan State University, 1, Al. Manoogian, Yerevan 0025, Armenia |
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| Abstract: | In this work, analytical solutions for the interface longitudinal optical (LO) phonons in cylindrical polar-semiconductor quantum wires are normalized by the standard quantization condition. Two cases are considered: polar-semiconductor quantum wires encapsulated in another polar-semiconductor and polar-semiconductor quantum wires encapsulated in metal. For the case of metal encapsulation it is demonstrated that unwanted inelastic interface LO phonon scattering is eliminated since the interface modes do not satisfy the appropriate boundary conditions. |
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