Renormalizing Antiferroelectric Nanostripes in ${\beta }^{\prime }-{\mathrm{In}}_2{\mathrm{Se}}_3$ via Optomechanics

Abstract

Antiferroelectric (AFE) materials have received tremendous attention owing to their high energy conversion efficiency and good tunability. Recently, an exotic two-dimensional (2D) AFE material, ${\beta }^{\prime }-{\mathrm{In}}_2{\mathrm{Se}}_3$ monolayer that could host atomically thin AFE nanostripe domains has been experimentally synthesized and theoretically examined. In this work, we apply first-principles calculations and theoretical estimations to predict that light irradiation can control the nanostripe width of such a system. We suggest that an intermediate near-infrared light (below bandgap) could effectively harness the thermodynamic Gibbs free energy, and the AFE nanostripe width will gradually reduce. We also propose to use an above bandgap linearly polarized light to generate AFE nanostripespecific photocurrent, providing an all-optical pump-probe setup for such AFE nanostripe width phase transitions.

9 pages, 4 figures, under peer review

References in corpus (4)

• Out-of-plane Piezoelectricity and Ferroelectricity in Layered $\alpha$-In2Se3 Nano-flakes
• Layer Hall effect induced by hidden Berry curvature in antiferromagnetic insulators
• Noncollinear ferrielectricity and morphotropic phase boundary in GeS monolayer
• Anisotropic terahertz optostriction in group-IV monochalcogenide compounds

Cited by in corpus (2)

• Reversing Neel Vector in PT-Antiferromagnets by Nonreciprocal Light Scattering
• Collective octahedral tilting in ultrathin Ruddlesden-Popper perovskite under terahertz light