Salje, E. K. H. and Ding, X. and Zhao, Z. (2013) Noise and finite size effects in multiferroics with strong elastic interactions. Applied Physics Letters, 102 (15). p. 152909. ISSN 0003-6951, ESSN: 1077-3118 DOI https://doi.org/10.1063/1.4802787
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Abstract
The size dependence of yield point assisted ferroelastic switching is dominated by the appearance of a minimum size where the domain switching by external strain is swamped by noise which is determined by internal jamming processes. The lower ferroelastic lateral cut-off size was found in computer simulations to be 200 × 202 unit cells for hard materials and 40 × 42 unit cells for soft materials. The corresponding length scales are 16 nm and 4 nm, respectively. These lengths are greater than the minimum length to sustain a twinned sample (∼1 nm). Elastic interactions modify the switching behavior of multiferroics at larger lengths but do not prevent elastic switching above these noise cut-offs.
Item Type: | Article |
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Additional Information: | ©2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. |
Uncontrolled Keywords: | 2013AREP; IA66; |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences |
Journal or Publication Title: | Applied Physics Letters |
Volume: | 102 |
Page Range: | p. 152909 |
Identification Number: | https://doi.org/10.1063/1.4802787 |
Depositing User: | Sarah Humbert |
Date Deposited: | 06 Jul 2013 23:25 |
Last Modified: | 08 Aug 2013 12:24 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/2824 |
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