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Khadka%2c Sushila accepted thesis 11-30-15 Fa 15.pdf (1.36 MB)
ETD Abstract Container
Abstract Header
Lateral Force Needed to Move a Molecule on a Surface
Author Info
Khadka, Sushila Kumari
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1448905676
Abstract Details
Year and Degree
2015, Master of Science (MS), Ohio University, Physics and Astronomy (Arts and Sciences).
Abstract
Diffusion processes of atoms and molecules on surfaces are vital for the formation of thin films. This thesis is devoted to the data analysis of the molecular manipulation experiments to compare lateral forces required to move a sexiphenyl molecule on a Ag (111) surface in two different directions; along the long molecular axis and along the sideway directions of the molecular axis. By finding the force angles as functions of lateral distances from the manipulation signals, the fit parameters of a Morse potential between the tip-apex atom and the sexihenyl molecule is determined. Comparison between the lateral forces to move the sexiphenyl along two surface close-packed directions reveals the preferential diffusion direction of the molecule as along its long molecular axis. This finding provides an important basis for understanding molecular diffusion processes on surfaces.
Committee
Saw Wai Hla, Prof. (Advisor)
Nancy Sandler, Prof. (Committee Chair)
Pages
57 p.
Subject Headings
Nanoscience
;
Physics
Keywords
STM
;
Sexiphenyl
;
Lateral manipulation
;
Morse potential
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Refworks
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Citations
Khadka, S. K. (2015).
Lateral Force Needed to Move a Molecule on a Surface
[Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1448905676
APA Style (7th edition)
Khadka, Sushila.
Lateral Force Needed to Move a Molecule on a Surface.
2015. Ohio University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1448905676.
MLA Style (8th edition)
Khadka, Sushila. "Lateral Force Needed to Move a Molecule on a Surface." Master's thesis, Ohio University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1448905676
Chicago Manual of Style (17th edition)
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Document number:
ohiou1448905676
Download Count:
266
Copyright Info
© 2015, all rights reserved.
This open access ETD is published by Ohio University and OhioLINK.