Spectroscopic evidence of flat bands in breathing kagome semiconductor Nb3I8

Sabin Regmi; Tharindu Fernando; Yuzhou Zhao; Anup Pradhan Sakhya; Gyanendra Dhakal; Iftakhar Bin Elius; Hector Vazquez; Jonathan D. Denlinger; Jihui Yang; Jiun-Haw Chu; Xiaodong Xu; Ting Cao; Madhab Neupane

doi:10.1038/s43246-022-00318-3

Communications Materials (Dec 2022)

Spectroscopic evidence of flat bands in breathing kagome semiconductor Nb3I8

Sabin Regmi,
Tharindu Fernando,
Yuzhou Zhao,
Anup Pradhan Sakhya,
Gyanendra Dhakal,
Iftakhar Bin Elius,
Hector Vazquez,
Jonathan D. Denlinger,
Jihui Yang,
Jiun-Haw Chu,
Xiaodong Xu,
Ting Cao,
Madhab Neupane

Affiliations

Sabin Regmi: Department of Physics, University of Central Florida
Tharindu Fernando: Department of Physics, University of Washington
Yuzhou Zhao: Department of Physics, University of Washington
Anup Pradhan Sakhya: Department of Physics, University of Central Florida
Gyanendra Dhakal: Department of Physics, University of Central Florida
Iftakhar Bin Elius: Department of Physics, University of Central Florida
Hector Vazquez: Department of Physics, University of Central Florida
Jonathan D. Denlinger: Lawrence Berkeley National Laboratory
Jihui Yang: Department of Materials Science and Engineering, University of Washington
Jiun-Haw Chu: Department of Physics, University of Washington
Xiaodong Xu: Department of Physics, University of Washington
Ting Cao: Department of Materials Science and Engineering, University of Washington
Madhab Neupane: Department of Physics, University of Central Florida

DOI: https://doi.org/10.1038/s43246-022-00318-3
Journal volume & issue: Vol. 3, no. 1
pp. 1 – 6

Abstract

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Niobium halide semiconductors are interesting for their breathing kagome geometry, easily exfoliable layered structure, and potential two-dimensional magnetism. Here, experimental evidence of flat bands in Nb3I8, originating from the niobium breathing kagome lattice, is observed using angle-resolved photoemission spectroscopy and supported by first-principles calculations.

Published in Communications Materials

ISSN: 2662-4443 (Online)
Publisher: Nature Portfolio
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.nature.com/commsmat/

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