Using density functional theory and molecular dynamics, the authors show that in bilayer h-BN an out-of-plane field drives in-plane interlayer sliding through off-diagonal Born effective charges, so switching is avalanche-like and the coercive field is controlled by symmetry-breaking…
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Polarization switching in sliding ferroelectrics: the roles of fluctuation and domain wall
Using density functional theory and molecular dynamics, the authors show that in bilayer h-BN an out-of-plane field drives in-plane interlayer sliding through off-diagonal Born effective charges, so switching is avalanche-like and the coercive field is controlled by symmetry-breaking…