Ferroelectric switching dynamics of topological vortex domains in a hexagonal manganite
Myung-Geun Han, Yimei Zhu, Lijun Wu, Toshihiro Aoki, Vyacheslav, Volkov, Xueyun Wang, Seung Chul Chae, Yoon Seok Oh, Sang-Wook Cheong
TL;DR
This paper investigates how topological vortex domains in a hexagonal manganite switch under electric fields, using atomic imaging and electrical biasing, highlighting the influence of topological defects on domain-wall dynamics.
Contribution
It provides new insights into the ferroelectric switching mechanisms of vortex domains and the role of topological defects in a hexagonal manganite.
Findings
Topological defects influence domain-wall pair movement.
Electric bias can induce vortex domain switching.
Atomic imaging reveals detailed switching dynamics.
Abstract
Field-induced switching of ferroelectric domains with a topological vortex configuration is studied by atomic imaging and electrical biasing in an electron microscope, revealing the role of topological defects on the topologically-guided change of domain-wall pairs in a hexagonal manganite.
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Taxonomy
TopicsMultiferroics and related materials · Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies