Low temperature behavior of krypton monolayers on graphite

The low temperature behaviour of a system of incommensurate krypton monolayers on graphite was analysed. The free energy was calculated for a variety of monolayer configurations and the misfit and orientation of the minimum energy configuration determined as a function of the temperature and chemica...

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Main Author: Shrimpton, Neil Douglas
Language:English
Published: University of British Columbia 2010
Subjects:
Online Access:http://hdl.handle.net/2429/27531
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spelling ndltd-UBC-oai-circle.library.ubc.ca-2429-275312018-01-05T17:44:13Z Low temperature behavior of krypton monolayers on graphite Shrimpton, Neil Douglas Krypton Graphite The low temperature behaviour of a system of incommensurate krypton monolayers on graphite was analysed. The free energy was calculated for a variety of monolayer configurations and the misfit and orientation of the minimum energy configuration determined as a function of the temperature and chemical potential of the system. The free energy did not vary significantly over the temperature range from 0 K to 4 K. The zero point energy contributes significantly to the free energy and could not be neglected. The lowest energy vibrational modes were determined; these modes correspond to motion of the domain walls. For configurations with clearly separated domain walls the vibrational modes separated into groups of three (triads). In the lowest energy triad, the lowest energy mode was a compressional mode. The second and third lowest modes were shearing modes. These three modes describe the fundamental forms of domain wall motion. The modes of the higher energy triads are more energetic forms of the lowest energy triad. Science, Faculty of Physics and Astronomy, Department of Graduate 2010-08-18T19:16:21Z 2010-08-18T19:16:21Z 1987 Text Thesis/Dissertation http://hdl.handle.net/2429/27531 eng For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. University of British Columbia
collection NDLTD
language English
sources NDLTD
topic Krypton
Graphite
spellingShingle Krypton
Graphite
Shrimpton, Neil Douglas
Low temperature behavior of krypton monolayers on graphite
description The low temperature behaviour of a system of incommensurate krypton monolayers on graphite was analysed. The free energy was calculated for a variety of monolayer configurations and the misfit and orientation of the minimum energy configuration determined as a function of the temperature and chemical potential of the system. The free energy did not vary significantly over the temperature range from 0 K to 4 K. The zero point energy contributes significantly to the free energy and could not be neglected. The lowest energy vibrational modes were determined; these modes correspond to motion of the domain walls. For configurations with clearly separated domain walls the vibrational modes separated into groups of three (triads). In the lowest energy triad, the lowest energy mode was a compressional mode. The second and third lowest modes were shearing modes. These three modes describe the fundamental forms of domain wall motion. The modes of the higher energy triads are more energetic forms of the lowest energy triad. === Science, Faculty of === Physics and Astronomy, Department of === Graduate
author Shrimpton, Neil Douglas
author_facet Shrimpton, Neil Douglas
author_sort Shrimpton, Neil Douglas
title Low temperature behavior of krypton monolayers on graphite
title_short Low temperature behavior of krypton monolayers on graphite
title_full Low temperature behavior of krypton monolayers on graphite
title_fullStr Low temperature behavior of krypton monolayers on graphite
title_full_unstemmed Low temperature behavior of krypton monolayers on graphite
title_sort low temperature behavior of krypton monolayers on graphite
publisher University of British Columbia
publishDate 2010
url http://hdl.handle.net/2429/27531
work_keys_str_mv AT shrimptonneildouglas lowtemperaturebehaviorofkryptonmonolayersongraphite
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