Qian, Shangyu
(2020)
Adsorption and Desorption of Chiral Molecules on Gold Substrate in Magnetic Fields.
Master's Thesis, University of Pittsburgh.
(Unpublished)
Abstract
The chiral-induced spin selectivity (CISS) effect refers to the fact that when electrons transit through a chiral molecule (or structure), the chiral potential leads to an effective magnetic field in the rest frame of the electron that acts on the electron spin, providing a preference for the transmission of one electron spin orientation over the other. Because of the CISS effect, the interaction between a magnetized surface and a chiral molecule will depend on the enantiomer and on the magnetization direction of the magnetized substrate. This work aims to better understand the interaction between a ferromagnetic surface and chiral molecules and use the knowledge to establish a method of enantiomer separation. An electrochemical quartz crystal microbalance (EQCM) is used to study the electrochemical adsorption and desorption for different enantiomers of a chiral molecule, cysteine, onto ferromagnetic substrates under an external magnetic field, both thermodynamically and kinetically. The results show that the kinetics for adsorption and desorption of a chiral molecule depends on the magnetization direction of the surface.
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Details
Item Type: |
University of Pittsburgh ETD
|
Status: |
Unpublished |
Creators/Authors: |
|
ETD Committee: |
|
Date: |
8 June 2020 |
Date Type: |
Publication |
Defense Date: |
8 April 2020 |
Approval Date: |
8 June 2020 |
Submission Date: |
9 April 2020 |
Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
Number of Pages: |
57 |
Institution: |
University of Pittsburgh |
Schools and Programs: |
Dietrich School of Arts and Sciences > Chemistry |
Degree: |
MS - Master of Science |
Thesis Type: |
Master's Thesis |
Refereed: |
Yes |
Uncontrolled Keywords: |
CISS, EQCM, Magnetization, Enantiomer separation, Cysteine |
Date Deposited: |
08 Jun 2020 15:27 |
Last Modified: |
08 Jun 2020 15:27 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/38637 |
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