Motion and teleportation of polar bubbles in low-dimensional ferroelectrics

S. Prokhorenko (), Y. Nahas, V. Govinden, Q. Zhang (), N. Valanoor and L. Bellaiche
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S. Prokhorenko: University of Arkansas
Y. Nahas: University of Arkansas
V. Govinden: The University of New South Wales
Q. Zhang: The University of New South Wales
N. Valanoor: The University of New South Wales
L. Bellaiche: University of Arkansas

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Electric bubbles are sub-10nm spherical vortices of electric dipoles that can spontaneously form in ultra-thin ferroelectrics. While the static properties of electric bubbles are well established, little to nothing is known about the dynamics of these particle-like structures. Here, we reveal pathways to realizing both the spontaneous and controlled dynamics of electric bubbles in ultra-thin Pb(Zr0.4Ti0.6)O3 films. In low screening conditions, we find that electric bubbles exhibit thermally-driven chaotic motion giving rise to a liquid-like state. In the high screening regime, we show that bubbles remain static but can be continuously displaced by a local electric field. Additionally, we predict and experimentally demonstrate the possibility of bubble teleportation - a process wherein a bubble is transferred to a new location via a single electric field pulse of a PFM tip. Finally, we attribute the discovered phenomena to the hierarchical structure of the energy landscape.

Date: 2024
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DOI: 10.1038/s41467-023-44639-4

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