POLARIZATION EIGENVECTORS OF SURFACE-OPTICAL PHONON MODES IN A RECTANGULAR QUANTUM WIRE

被引：67

作者：

STROSCIO, MA

KIM, KW

LITTLEJOHN, MA

CHUANG, HH

机构：

[1] N CAROLINA STATE UNIV,DEPT ELECT & COMP ENGN,RALEIGH,NC 27695

[2] DUKE UNIV,DEPT ELECT ENGN,DURHAM,NC 27706

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.42.1488

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The polarization eigenvectors and dispersion relations for confined longitudinal-optical (LO) and surface-optical (SO) phonon modes in a rectangular quantum wire are derived within the continuum approximation. The SO and confined LO modes are compared for a quantum wire with a square cross-section in the limit of a vanishing phonon wave vector along the quantum-wire axis. For this case, it is demonstrated that the SO mode becomes dominant over the confined LO modes in interaction with electrons and must be taken into account in calculating the electronoptical-phonon scattering rate. © 1990 The American Physical Society.

引用

页码：1488 / 1491

页数：4

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