Sahar Saremi

TL;DR: In this paper, a room-temperature polar-skyrmion bubbles were discovered in a lead titanate layer confined by strontium titanate layers, which were imaged by atomic-resolution scanning transmission electron microscopy.

TL;DR: It is shown that high-energy ion bombardment improves the energy storage performance of relaxor ferroelectric thin films and suggests that postprocessing may be important for developing the next generation of capacitors.

TL;DR: How these new approaches to strain engineering provide promising routes to control and decouple ferroelectric susceptibilities and create new modes of response not possible in the confines of conventional strain engineering is discussed.

TL;DR: The bending-induced polarization of barium titanate single crystals has been measured with an aim to elucidate the origin of the large difference between theoretically predicted and experimentally measured flexoelectricity in this material, and it is indicated that part of the difference is due to polar regions that exist above T(C) and up to T*≈200-225 °C.

TL;DR: Polar skyrmions are topologically protected structures that can exist in (PbTiO 3 ) n /(SrTiO3 ) n superlattices and it is shown that they have negative permittivity at the surface, and that they can undergo a reversible phase transition with large dielectric tunability under an electric field.