Chang, L. W. and McMillen, M. and Morrison, F. D. and Scott, J. F. and Gregg, J. M. (2008) Size effects on thin film ferroelectrics: Experiments on isolated single crystal sheets. Applied Physics Letters, 93 (13). pp. 132904-3. DOI https://doi.org/10.1063/1.2990760
![]() |
PDF
Scott_Appl_Phys_Letts_93_2008.pdf Restricted to Registered users only Download (318kB) |
Abstract
Thin lamellae were cut from bulk single crystal BaTiO3 using a focused ion beam microscope. They were then removed and transferred onto single crystal MgO substrates, so that their functional properties could be measured independent of the original host bulk ferroelectric. The temperature dependence of the capacitance of these isolated single crystal films was found to be strongly bulklike, demonstrating a sharp Curie anomaly, as well as Curie–Weiss behavior. In addition, the sudden change in the remanent polarization as a function of temperature at TC was characteristic of a first order phase change. The work represents a dramatic improvement on that previously published by Saad et al. [J. Phys.: Condens. Matter 16, L451 (2004)], as critical shortcomings in the original specimen geometry, involving potential signal contributions from bulk BaTiO3, have now been obviated. That the functional properties of single crystal thin film lamellae are comparable to bulk, and not like those of conventionally deposited heterogeneous thin film systems, has therefore been confirmed
Item Type: | Article |
---|---|
Uncontrolled Keywords: | 08AREP; IA57; |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences |
Journal or Publication Title: | Applied Physics Letters |
Volume: | 93 |
Page Range: | pp. 132904-3 |
Identification Number: | https://doi.org/10.1063/1.2990760 |
Depositing User: | Sarah Humbert |
Date Deposited: | 30 May 2009 11:50 |
Last Modified: | 23 Jul 2013 09:55 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/1043 |
Actions (login required)
![]() |
View Item |