Theoretical Understanding of Polar Topological Phase Transitions in Functional Oxide Heterostructures: A Review

Guo, X and Zhou, L and Roul, B and Wu, Y and Huang, Y and Das, S and Hong, Z (2022) Theoretical Understanding of Polar Topological Phase Transitions in Functional Oxide Heterostructures: A Review. In: Small Methods .

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Abstract

The exotic topological phase is attracting considerable attention in condensed matter physics and materials science over the past few decades due to intriguing physical insights. As a combination of “topology” and “ferroelectricity,” the ferroelectric (polar) topological structures are a fertile playground for emergent phenomena and functionalities with various potential applications. Herein, the review starts with the universal concept of the polar topological phase and goes on to briefly discuss the important role of computational tools such as phase-field simulations in designing polar topological phases in oxide heterostructures. In particular, the history of the development of phase-field simulations for ferroelectric oxide heterostructures is highlighted. Then, the current research progress of polar topological phases and their emergent phenomena in ferroelectric functional oxide heterostructures is reviewed from a theoretical perspective, including the topological polar structures, the establishment of phase diagrams, their switching kinetics and interconnections, phonon dynamics, and various macroscopic properties. Finally, this review offers a perspective on the future directions for the discovery of novel topological phases in other ferroelectric systems and device design for next-generation electronic device applications.

Item Type:	Journal Article
Publication:	Small Methods
Publisher:	John Wiley and Sons Inc
Additional Information:	The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords:	Ferroelectric materials; Phase diagrams; Topology, Condensed-matter physics; Emergent phenomenon; Functional oxide heterostructure; Functional oxides; Material science; Oxide heterostructures; Phase-field simulation; Polar topological phase; Theoretical calculations; Topological phase, Ferroelectricity
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	23 Aug 2022 05:54
Last Modified:	23 Aug 2022 05:54
URI:	https://eprints.iisc.ac.in/id/eprint/76183

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