Brownian Electric Bubble Quasiparticles

In this talk I will describe our theoretical predictions on the possibility to stabilize a new kind of quasiparticle in ferroelectric nanostructures, by suitably controling the elastic and electric boundary conditions. These novel particles are electric bubbles (e-bubbles) that present a non-trivial topology at low temperatures (skyrmion-like) and become spontaneously mobile upon moderate heating (Brownian diffusion). I will present the typical time scales for the e-bubble dynamics and discuss the basic inter-bubble interactions -- as predicted form our atomistic (second-principles) simulations. I will also show how the e-bubbles' diffusion speed and lifetime can be tuned by controlling the temperature and the defining features of the ferroelectric nanomaterials (thickness, epitaxial strain they are subject to). I will conclude by giving an outlook of the field; in particular, I will comment on the possible use of these objects in Unconventional Computing applications.<br/><br/>Work done in collaboration with Hugo Aramberri and Natalya Fedorova (Luxembourg Institute of Science and Technolgoy). Work funded by the<br/>Luxembourg National Research Fund through Grant C21/MS/15799044/FERRODYNAMICS.