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Permanent link (DOI): https://doi.org/10.7939/R3D92F

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STM downmixing readout of nanomechanical motion Open Access

Descriptions

Other title
Subject/Keyword
STM, MEMS, NEMS, high frequency downmixing, electron tunneling transducer
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Kan, Meng
Supervisor and department
Wayne Hiebert (National Institute for Nanotechnology)
Mark Freeman (Physics)
Examining committee member and department
Mark McDermott (Chemistry)
Al Meldrum (Physics)
Department
Department of Physics
Specialization

Date accepted
2010-08-27T18:42:18Z
Graduation date
2010-11
Degree
Master of Science
Degree level
Master's
Abstract
The scanning tunneling microscope (STM) based on quantum tunneling can attain atomic-scale spatial resolution and help elucidate a wealth of phenomena in the microscopic world. However a limitation in scanning tunneling microscopy is the low temporal resolution due to readout circuit frequency rolloff at a few kHz. This limitation can be overcome by using downmixing directly in the tunneling junction. With this technology we measure the high frequency vibrational modes (~ 1 MHz) of MEMS doubly-clamped beams and explore the implication of STM downmixing for nanomechanics.
Language
English
DOI
doi:10.7939/R3D92F
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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File author: Meng Kan
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