Magnetotransport in nonplanar SiGe/Si nanomembranes

被引：14

作者：

Meyer, Gregory J. ^{[1
]}

Dias, Neville L. ^{[1
]}

Blick, Robert H. ^{[1
]}

Knezevic, Irena ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA

来源：

IEEE TRANSACTIONS ON NANOTECHNOLOGY | 2007年 / 6卷 / 04期

基金：

美国国家科学基金会;

关键词：

curved nanostructures; geometric potential; magnetotransport; Si/SiGe nanomembranes;

D O I：

10.1109/TNANO.2007.896848

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate the relationship between electronics and geometry in a nonplanar SiGe/Si resonant quantum cavity (RQC) subject to a magnetic field. The transfer matrix technique originally due to Usuki et al. [Phys. Rev. B, vol. 52, pp. 8244-8255, 1995] has been modified to account for the nonzero local curvature of the RQC. Our results demonstrate that low-temperature ballistic magnetoconductance in nonplanar RQCs is highly sensitive to the changes in curvature for a wide range of magnetic field strengths.

引用

页码：446 / 450

页数：5

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