Magnetotransport in Nonplanar SiGe/Si Nanomembranes

Author

Meyer, Gregory J. ; Dias, Neville L. ; Blick, Robert H. ; Knezevic, Irena

Author_Institution

Univ. of Wisconsin, Madison

Volume

6

Issue

4

fYear

2007

fDate

7/1/2007 12:00:00 AM

Firstpage

446

Lastpage

450

Abstract

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.

Keywords

cavity resonators; elemental semiconductors; enhanced magnetoresistance; germanium alloys; membranes; nanostructured materials; semiconductor-metal boundaries; silicon; silicon alloys; SiGe-Si - Interface; low-temperature ballistic magnetoconductance; magnetotransport; nanomembranes; nonplanar resonant quantum cavity; nonzero local curvature; transfer matrix technique; Electrons; Etching; Geometry; Germanium silicon alloys; Magnetic field measurement; Magnetic fields; Magnetic resonance; Nanoelectromechanical systems; Physics; Silicon germanium; Curved nanostructures; Si/SiGe nanomembranes; geometric potential; magnetotransport;

fLanguage

English

Journal_Title

Nanotechnology, IEEE Transactions on

Publisher

ieee

ISSN

1536-125X

Type

jour

DOI

10.1109/TNANO.2007.896848

Filename

4268345