具有表面粗糙度的单模半导体纳米片平均自由程的数值计算方法

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2023-08-31 DOI:10.35848/1882-0786/acf5c8

Jo Okada, Hajime Tanaka, N. Mori

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引用次数: 0

摘要

提出了一种计算具有表面粗糙度的单模半导体纳米片传输平均自由程的数值计算方法，其中平均自由程是从无量纲电阻对数的统计平均值中提取的。本方法只需要计算上要求较低的相干传输概率，并且适用于从准弹道到定位系统的较宽信道长度范围。在有效质量近似范围内，通过所提出的方法计算的平均自由程的通道厚度T w依赖性显示了众所周知的T w 6对较厚T w的依赖性，而对较薄T w则变得较弱。

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Numerical calculation method for the mean free path of single-mode semiconductor nanosheets with surface roughness

A numerical calculation method is proposed to compute the transport mean free path of single-mode semiconductor nanosheets with surface roughness, where the mean free path is extracted from the statistical average of the logarithm of the dimensionless resistance. The present method requires only a computationally less demanding coherent transmission probability, and is applicable to wider channel length ranges from the quasi-ballistic to the localization regime. The channel thickness, T w, dependence of the mean free path calculated by the proposed method within the effective mass approximation shows the well-known T W 6 dependence for thicker T w, while it becomes weaker for thinner T w.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).