Anomalous excitonic phase diagram in band-gap-tuned Ta2Ni(Se,S)5

Anomalous excitonic phase diagram in band-gap-tuned Ta2Ni(Se,S)5

Abstract During a band-gap-tuned semimetal-to-semiconductor transition, Coulomb attraction between electrons and holes can cause spontaneously formed excitons near the zero-band-gap point, or the Lifshitz transition point. This has become an important route to realize bulk excitonic insulators – an...

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Bibliographic Details
Main Authors: Cheng Chen, Weichen Tang, Xiang Chen, Zhibo Kang, Shuhan Ding, Kirsty Scott, Siqi Wang, Zhenglu Li, Jacob P. C. Ruff, Makoto Hashimoto, Dong-Hui Lu, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Eduardo H. da Silva Neto, Robert J. Birgeneau, Yulin Chen, Steven G. Louie, Yao Wang, Yu He
Format: Article
Language:English
Published: Nature Portfolio 2023-11-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-43365-1

Internet

https://doi.org/10.1038/s41467-023-43365-1

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