ELECTRON ACOUSTIC-PHONON SCATTERING RATES IN CYLINDRICAL QUANTUM WIRES

被引:54
作者
YU, SG
KIM, KW
STROSCIO, MA
IAFRATE, GJ
机构
[1] USA,RES OFF,RES TRIANGLE PK,NC 27709
[2] N CAROLINA STATE UNIV,DEPT PHYS,RALEIGH,NC 27695
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 07期
关键词
D O I
10.1103/PhysRevB.51.4695
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electron-acoustic-phonon scattering rates in a cylindrical quantum wire are studied. Considering the quantum wire as an elastic continuum, the confined-phonon dispersion relation is calculated for two cardinal boundary conditions: free-surface and clamped-surface boundary conditions. The scattering rates due to the deformation-potential interaction are obtained for these two confined phonons and are compared with those of bulklike phonons. The results show that the inclusion of acoustic-phonon confinement effects may be crucial for calculating accurate low-energy-electron scattering rates in nanostructures. It is also demonstrated that the anisotropy should not be ignored for materials of cubic symmetry. © 1995 The American Physical Society.
引用
收藏
页码:4695 / 4698
页数:4
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