title: Mechanical loss in multiferroic materials at high frequencies: friction and the evolution of ferroelastic microstructures.
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.
authors: State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.
authors: Z
authors: Z
authors: Zhao
authors: X
authors: X
authors: Ding
authors: T
authors: T
authors: Lookman
authors: J
authors: J
authors: Sun
authors: E K H
authors: EK
authors: Salje