Mechanical loss in multiferroic materials at high frequencies: friction and the evolution of ferroelastic microstructures.
basic_science · Level V
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- Record sourced from PubMed, PMID 23649792.
- Also identified by DOI 10.1002/adma.201300655.
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Abstract
Energy absorption in multiferroic materials stems typically from strain relaxation which can be strong even when no extrinsic defects exist in the material. Computer simulations of a simple two-dimensional model on a generic, proper ferroelastic material identify the dissipative mechanisms associated with the dynamical motion as: a) advance and retraction of needle-shaped twin domains and, b) movement of kinks inside twin boundaries. Both movements involve friction losses.