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 10.1063/1.4802787
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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.
|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|
|Page Range:||p. 152909|
|Depositing User:||Sarah Humbert|
|Date Deposited:||06 Jul 2013 23:25|
|Last Modified:||08 Aug 2013 12:24|
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