Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

Sorted by: relevance · author · university · dateNew search

You searched for +publisher:"Dalhousie University" +contributor:("Dr. Theodore Monchesky"). Showing records 1 – 2 of 2 total matches.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


Dalhousie University

1. Wilson, Murray. Magnetic Skyrmion Phase in MnSi Thin Films.

Degree: MS, Department of Physics & Atmospheric Science, 2013, Dalhousie University

Detailed magnetometry and polarized neutron reflectometry studies were conducted on MnSi thin films grown epitaxially on Si(111) substrates. It is demonstrated that with an in-plane applied field H || [110], a broadly stable skyrmion phase exists at elevated temperatures and fields. Magnetometry and transport measurements with an out-of-plane applied field H || [111] prove that no skyrmion phase exists in this geometry. However, Hall effect measurements in this geometry show unexpected evidence of a topological Hall effect. This can be explained with a multi-dimensionally modulated cone phase, which proves that contrary to recent literature, a topological Hall effect is not sufficient proof of skyrmions. The results of this thesis represent a significant step towards a technologically relevant material in which skyrmions are broadly stable. A material of this type could be used in novel magnetic storage devices and signi ficantly impact our future computing capabilities. Advisors/Committee Members: n/a (external-examiner), Dr. Kevin Hewitt (graduate-coordinator), Dr. Richard Dunlap (thesis-reader), Dr. Kevin Hewitt (thesis-reader), Dr. Theodore Monchesky (thesis-supervisor), Not Applicable (ethics-approval), Not Applicable (manuscripts), Not Applicable (copyright-release).

Subjects/Keywords: Skyrmion; Magnetic thin film; Dzyaloshinskii-Moriya; Spintronics; Helimagnet; Hall Effect

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Wilson, M. (2013). Magnetic Skyrmion Phase in MnSi Thin Films. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/21672

Chicago Manual of Style (16th Edition):

Wilson, Murray. “Magnetic Skyrmion Phase in MnSi Thin Films.” 2013. Masters Thesis, Dalhousie University. Accessed May 20, 2019. http://hdl.handle.net/10222/21672.

MLA Handbook (7th Edition):

Wilson, Murray. “Magnetic Skyrmion Phase in MnSi Thin Films.” 2013. Web. 20 May 2019.

Vancouver:

Wilson M. Magnetic Skyrmion Phase in MnSi Thin Films. [Internet] [Masters thesis]. Dalhousie University; 2013. [cited 2019 May 20]. Available from: http://hdl.handle.net/10222/21672.

Council of Science Editors:

Wilson M. Magnetic Skyrmion Phase in MnSi Thin Films. [Masters Thesis]. Dalhousie University; 2013. Available from: http://hdl.handle.net/10222/21672


Dalhousie University

2. Thorbahn, Jeremy G. Local Structure and the Photoelastic Response in Zinc-modified Oxide Glass.

Degree: MS, Department of Physics & Atmospheric Science, 2013, Dalhousie University

Understanding the relationship between the structure of materials and their properties allows for the development of new applications and technologies. Here the relationship between local structure and optical properties in several binary oxide glass systems containing zinc oxide was examined, in particular the relationship between structure, applied stress and induced birefringence in a glass. The empirical model introduced by Zwanziger and co-workers posits a negative correlation between the ratio of the bond length to coordination number in a glass and the induced birefringence; zinc oxide in this model is predicted to be exactly at the threshold between positive and negative birefringence and is thus of particular interest to investigate. XAFS and Raman spectroscopy were used to determine local structure while the Sénarmont compensator method, Abbe refractometry and spectroscopic ellipsometry were used to measure optical properties. Advisors/Committee Members: n/a (external-examiner), Dr. Jordan Kyriakidis (graduate-coordinator), Dr. Theodore Monchesky (thesis-reader), Dr. Peng Zhang (thesis-reader), Dr. Josef Zwanziger (thesis-supervisor), Not Applicable (ethics-approval), Not Applicable (manuscripts), Not Applicable (copyright-release).

Subjects/Keywords: Glass structure; photoelasticity; EXAFS; zinc oxide

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Thorbahn, J. G. (2013). Local Structure and the Photoelastic Response in Zinc-modified Oxide Glass. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/35368

Chicago Manual of Style (16th Edition):

Thorbahn, Jeremy G. “Local Structure and the Photoelastic Response in Zinc-modified Oxide Glass.” 2013. Masters Thesis, Dalhousie University. Accessed May 20, 2019. http://hdl.handle.net/10222/35368.

MLA Handbook (7th Edition):

Thorbahn, Jeremy G. “Local Structure and the Photoelastic Response in Zinc-modified Oxide Glass.” 2013. Web. 20 May 2019.

Vancouver:

Thorbahn JG. Local Structure and the Photoelastic Response in Zinc-modified Oxide Glass. [Internet] [Masters thesis]. Dalhousie University; 2013. [cited 2019 May 20]. Available from: http://hdl.handle.net/10222/35368.

Council of Science Editors:

Thorbahn JG. Local Structure and the Photoelastic Response in Zinc-modified Oxide Glass. [Masters Thesis]. Dalhousie University; 2013. Available from: http://hdl.handle.net/10222/35368

.