2026-09-19T05:15:55Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1014552026-06-16T18:54:47Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Tao, Ye, Ph. D. Massachusetts Institute of Technology
Massachusetts Institute of Technology. Department of Chemistry.
Massachusetts Institute of Technology. Department of Chemistry
2016-03-03T20:29:38Z
2016-03-03T20:29:38Z
2015
2015
http://hdl.handle.net/1721.1/101455
940566272
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2015.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 257-285).
This thesis is devoted to a systematic development of methods for controlling energy dissipation in small mechanical systems, specifically nanomechanical resonators with at least one dimension in the deep nanometer range (< 200 nm). We explored three avenues for decreasing intrinsic dissipation and one method for decreasing non-contact friction. The three routes toward lower intrinsic dissipation are surface chemical engineering, alternative materials testing, and geometric optimization through nanofabrication. Reduction in non-contact friction between a vibrating nanomechanical resonator and a surface, spaced nanometers away from the latter, was achieved by using a diamond nanowire as an integrated scanning tip. Each of the four approaches led to between one and two orders of magnitude reduction in dissipation compared to the previous state-of-the-art in the literature. Planned integration of individual successful approaches is expected to result in devices with sufficient force sensitivity and with the suitable geometry for the nanomechanical detection of a single nuclear spin by magnetic resonance force microscopy.
by Ye Tao.
Ph.D.
285 pages
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Chemistry.
Nanomechanical systems with small dissipation
Thesis
application/pdf
false
Publication
unknown
unknown
<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="447413c2-5019-481b-950f-53fb4165c412">
<Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type>
<Language>eng</Language>
<Title>Nanomechanical systems with small dissipation</Title>
<PublishedIn>
<Publication>
</Publication>
</PublishedIn>
<PublicationDate>2015</PublicationDate>
<Authors>
<Author>
<DisplayName>Tao, Ye, Ph. D. Massachusetts Institute of Technology</DisplayName>
<Affiliation>
<OrgUnit>
</OrgUnit>
</Affiliation>
</Author>
</Authors>
<Editors>
</Editors>
<Publishers>
<Publisher>
<DisplayName>Massachusetts Institute of Technology</DisplayName>
<OrgUnit />
</Publisher>
</Publishers>
<License>http://dspace.mit.edu/handle/1721.1/7582</License>
<Keyword>Chemistry.</Keyword>
<Abstract>This thesis is devoted to a systematic development of methods for controlling energy dissipation in small mechanical systems, specifically nanomechanical resonators with at least one dimension in the deep nanometer range (< 200 nm). We explored three avenues for decreasing intrinsic dissipation and one method for decreasing non-contact friction. The three routes toward lower intrinsic dissipation are surface chemical engineering, alternative materials testing, and geometric optimization through nanofabrication. Reduction in non-contact friction between a vibrating nanomechanical resonator and a surface, spaced nanometers away from the latter, was achieved by using a diamond nanowire as an integrated scanning tip. Each of the four approaches led to between one and two orders of magnitude reduction in dissipation compared to the previous state-of-the-art in the literature. Planned integration of individual successful approaches is expected to result in devices with sufficient force sensitivity and with the suitable geometry for the nanomechanical detection of a single nuclear spin by magnetic resonance force microscopy.</Abstract>
<Access xmlns="http://purl.org/coar/access_right"
>
</Access>
</Publication>