How to generate high twin densities in nano-ferroics: Thermal quench and low temperature shear

Salje, E. K. H. and Ding, X. and Zhao, Z. and Lookman, T. (2012) How to generate high twin densities in nano-ferroics: Thermal quench and low temperature shear. Applied Physics Letters, 100 (22). p. 222905. DOI 10.1063/1.4724192

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Abstract

High domain boundary densities in ferroic nano materials are generated in computer simulation studies by (1) fast quench from a para-elastic into a ferroelastic phase and (2) by shear of small samples at low temperatures inside the stability field of the ferroelastic phase. Quenched samples evolve from tweed to junctions to stripe pattern. In driven systems, no tweed exists and the mesoscopic structure ‘nucleates’ rapidly when a yield stress is surpassed. The nucleated domain patterns are long-lived and change towards the single domain state only when the external strain is further increased.

Item Type: Article
Uncontrolled Keywords: 2012AREP; IA64;
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Applied Physics Letters
Volume: 100
Page Range: p. 222905
Identification Number: 10.1063/1.4724192
Depositing User: Sarah Humbert
Date Deposited: 17 Jul 2012 16:45
Last Modified: 23 Jul 2013 10:04
URI: http://eprints.esc.cam.ac.uk/id/eprint/2561

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