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Correlated insulator of excitons in WSe 2 /WS 2 moiré superlattices by Richen Xiong; Jacob H. Nie; Samuel L. Brantly; Patrick Hays; Renee Sailus; Kenji Watanabe; Takashi Taniguchi; Sefaattin Tongay; Chenhao Jin is a Medicine article available to read on EtoBox.
What is Correlated insulator of excitons in WSe 2 /WS 2 moiré superlattices about?
A panoply of unconventional electronic states has been observed in moiré superlattices. Engineering similar bosonic phases remains, however, largely unexplored. We report the observation of a bosonic correlated insulator in tungsten diselenide/tungsten disulfide (WSe 2 /WS 2 ) moiré superlattices composed of excitons, that is, tightly bound electron-hole pairs. We develop a pump probe spectroscopy method that we use to observe an exciton incompressible state at exciton filling ν ex = 1 and charge neutrality, indicating a correlated insulator of excitons. With varying charge density, the bosonic correlated insulator continuously transitions into an electron correlated insulator at charge filling ν e = 1, suggesting a mixed correlated insulating state between the two limits. Our studies establish semiconducting moiré superlattices as an intriguing platform for engineering bosonic phases.
Who reads Correlated insulator of excitons in WSe 2 /WS 2 moiré superlattices?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- Richen Xiong; Jacob H. Nie; Samuel L. Brantly; Patrick Hays; Renee Sailus; Kenji Watanabe; Takashi Taniguchi; Sefaattin Tongay; Chenhao Jin
- Publisher
- American Association for the Advancement of Science (AAAS)
- Published
- 2023
- Language
- EN
- Field
- Medicine (Social Sciences)