Files and links (1)
PDFOpen Access (License Unspecified), Open Access
Thesis
Ferroelectricity in barium titanate nanoshells
Master of Science (M.S.), Drexel University
01 Sep 2011
DOI:
https://doi.org/10.17918/etd-3879
Abstract
The ever decreasing dimensions of electronic devices introduce new diffculties in ensuring the stability and quality of their components. Ferroelectric materials have been limited in their application at the extreme nanoscale due to the increasing effects of depolarizing fields lending to instability in their polarization states. To combat these detrimental effects, curvature is introduced by way of a core-shell nanowire system employing a gold core and a ferroelectric barium titanate shell. Static piezoresponse force microscopy measurements reveal a renewed stability in ferroelectric polarization where the curvature of enough to reduce the effect of depolarizing fields. The stress induced by curvature also brings about a migration of the Curie temperature of barium titanate to above its bulk value, perhaps suggesting the material's increased viability as a stable ferroelectric on the nanoscale.
Metrics
32 File views/ downloads
33 Record Views
Details
- Title
- Ferroelectricity in barium titanate nanoshells
- Creators
- Michael T. Coster - DU
- Contributors
- Jonathan E. Spanier (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- Materials (Science and) Engineering (Metallurgical Engineering) [Historical]; College of Engineering (1970-2026); Drexel University
- Other Identifier
- 3879; 991014632731104721