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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/66619
- Landau theory of ferroelectric thin films and its relevance to RF filter design
- Webb, Jeffrey F.
- Landau-Devonshire theory  is a phenomenological theory of ferroelectric materials which are characterized by having a spontaneous polarization below the Curie temperature C T . Various properties such as the dielectric constant can be modelled with this theory. Here we pay particular attention to how the polarization profile can be calculated and then show how, via the Landau-Khalatinkov equations, the response to an incident electromagnetic field can be calculated. Obviously, this is just the sort of information relevant to filters design in the sense that it is essentially the response to an electromagnetic field that is important, especially the wave nature apparent at high enough frequencies.
- Publication type
- Conference paper
- Research centre
- Swinburne University of Technology. Sarawak Campus. School of Engineering and Science
- Proceedings of the 2008 Asia Pacific Microwave Conference (APMC 2008), Hong Kong, 16-20 December 2008
- Publication year
- Design; Electromagnetic radiation; Ferroelectric thin films; Filters
- Publisher URL
- Copyright © 2008 IEEE.
- Peer reviewed