Mechanical reading of ferroelectric polarization

Mechanical writing of ferroelectric polarization.

Ferroelectric materials are characterized by a permanent electric dipole that can be reversed through the application of an external voltage, but a strong intrinsic coupling between polarization and deformation also causes all ferroelectrics to be piezoelectric, leading to applications in sensors and high-displacement actuators. A less explored property is flexoelectricity, the coupling between...

Nanoscale mechanical switching of ferroelectric polarization via flexoelectricity

Ferroelectric control of spin polarization.

A current drawback of spintronics is the large power that is usually required for magnetic writing, in contrast with nanoelectronics, which relies on "zero-current," gate-controlled operations. Efforts have been made to control the spin-relaxation rate, the Curie temperature, or the magnetic anisotropy with a gate voltage, but these effects are usually small and volatile. We used ferroelectric ...

Ferroelectric Polarization Dependent Interface Effects

Polarization coupling in ferroelectric multilayers

M. B. Okatan,1 J. V. Mantese,2 and S. P. Alpay1,3,* 1Department of Chemical, Materials, and Biomolecular Engineering, Materials Science and Engineering Program, University of Connecticut, Storrs, Connecticut 06269, USA 2United Technologies Research Center, East Hartford, Connecticut 06108, USA 3Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA Received 23 December...