Work

Surface chiral Abelian topological order on multilayer cluster Mott insulators

Year: 2026

Type: article

Abstract: The surface states of a symmetry protected topological state can have many possibilities. Here, we propose a chiral Abelian topological order on a distinct surface of a multilayer-stacked cluster Mott insulating system. The first-principle calculation and the slave-rotor mean-field theory are applied to study the surface states of the relevant material system. The angle-resolved photoemission spectroscopic measurement is further suggested to detect the anomalous surface fractionalization of the chiral Abelian topological order on the surface. The connection with real materials is further discussed. We expect our results to inspire the interest in the emergent exotic and correlation physics among the cluster Mott insulating systems and in the interplay between the two different branches of topological phases.

Source: PNAS Nexus

DOI: 10.1093/pnasnexus/pgag248

Authors: Xu-Ping Yao, Chao-Kai Li, Gang v Chen

Institutions: Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, Southeast University, Peking University, Collaborative Innovation Center of Quantum Matter

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $4,202

OpenAlex ID: W7172331263

FWCI: 2.844

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Cited by: 1

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