Downloads: 259
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1.4904844.pdf | 3.48 MB | Adobe PDF | View/Open |
Title: | Geometrical and band-structure effects on phonon-limited hole mobility in rectangular cross-sectional germanium nanowires |
Authors: | Tanaka, H. Mori, S. Morioka, N. Suda, J. Kimoto, T. |
Author's alias: | 田中, 一 |
Issue Date: | 21-Dec-2014 |
Publisher: | American Institute of Physics |
Journal title: | Journal of Applied Physics |
Volume: | 116 |
Issue: | 23 |
Thesis number: | 235701 |
Abstract: | We calculated the phonon-limited hole mobility in rectangular cross-sectional [001], [110], [111], and [112]-oriented germanium nanowires, and the hole transport characteristics were investigated. A tight-binding approximation was used for holes, and phonons were described by a valence force field model. Then, scattering probability of holes by phonons was calculated taking account of hole-phonon interaction atomistically, and the linearized Boltzmann's transport equation was solved to calculate the hole mobility at low longitudinal field. The dependence of the hole mobility on nanowire geometry was analyzed in terms of the valence band structure of germanium nanowires, and it was found that the dependence was qualitatively reproduced by considering an average effective mass and the density of states of holes. The calculation revealed that [110] germanium nanowires with large height along the [001] direction show high hole mobility. Germanium nanowires with this geometry are also expected to exhibit high electron mobility in our previous work, and thus they are promising for complementary metal-oxide-semiconductor (CMOS) applications. |
Rights: | Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics |
URI: | http://hdl.handle.net/2433/193264 |
DOI(Published Version): | 10.1063/1.4904844 |
Appears in Collections: | Journal Articles |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.