"Slide-Tronics"

by Dr. Moshe Ben Shalom

TAU

at Condensed Matter Seminar

Mon, 20 Dec 2021, 11:30
Sacta-Rashi Building for Physics (54), room 207

Abstract

A new ferroelectric system, only two-atoms-thick is presented [1]. Stacking two layers of hexagonal boron nitride (hBN) atop each other, with a parallel crystal orientation, results in a permanent electric polarization pointing out of the plane. Furthermore, applying an opposite external electric field switches the vertical polarization via horizontal sliding between the layers. I will describe the atomic force experiment, DFT calculations, and a simplistic cohesion model, allowing us to explore the interfacial-ferroelectricity and its unique Slide-Tronics switching mechanism.
If time allows, I will further discuss our efforts to induce intrinsic electric and magnetic gauge fields in graphene by particular strain-engineering schemes [2].

[1] https://arxiv.org/abs/2010.05182
[2] https://arxiv.org/abs/1909.09991

Created on 13-12-2021 by Meidan, Dganit (dganit)
Updaded on 13-12-2021 by Meidan, Dganit (dganit)