Show simple item record

dc.contributor.author
Huang, Tsung-Sheng
dc.contributor.author
Chou, Yang-Zhi
dc.contributor.author
Baldwin, Christopher L.
dc.contributor.author
Wu, Fengcheng
dc.contributor.author
Hafezi, Mohammad
dc.date.accessioned
2023-06-20T12:39:29Z
dc.date.available
2023-06-17T03:46:55Z
dc.date.available
2023-06-20T12:39:29Z
dc.date.issued
2023-05-15
dc.identifier.issn
1098-0121
dc.identifier.issn
0163-1829
dc.identifier.issn
1550-235X
dc.identifier.issn
0556-2805
dc.identifier.issn
2469-9969
dc.identifier.issn
1095-3795
dc.identifier.issn
2469-9950
dc.identifier.other
10.1103/PhysRevB.107.195151
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/617171
dc.description.abstract
We develop a systematic theory for excitons subject to Fermi-Hubbard physics in moiré twisted transition metal dichalcogenides (TMDs). Specifically, we consider excitons from two moiré bands with a Mott-insulating valence band sustaining 120 spin order. These "Mott-moiré excitons,"which are achievable in twisted TMD heterobilayers, are bound states of a magnetic polaron in the valence band and a free electron in the conduction band. We find significantly narrower exciton bandwidths in the presence of Hubbard physics, serving as a potential experimental signature of strong correlations. We also demonstrate the high tunability of Mott-moiré excitons through the dependence of their binding energies, diameters, and bandwidths on the moiré period. In addition, we study bound states between charges outside of the strongly correlated moiré band and find that these as well exhibit signatures of spin correlation. Our work provides guidelines for future exploration of strongly correlated excitons in triangular Hubbard systems such as twisted TMD heterobilayers.
en_US
dc.language.iso
en
en_US
dc.publisher
American Physical Society
en_US
dc.title
Mott-moiré excitons
en_US
dc.type
Journal Article
dc.date.published
2023-05-26
ethz.journal.title
Physical Review B
ethz.journal.volume
107
en_US
ethz.journal.issue
19
en_US
ethz.journal.abbreviated
Phys. Rev., B
ethz.pages.start
195151
en_US
ethz.size
24 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Ridge, NY
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2023-06-17T03:46:55Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2023-06-20T12:39:30Z
ethz.rosetta.lastUpdated
2024-02-03T00:17:37Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Mott-moir%C3%A9%20excitons&rft.jtitle=Physical%20Review%20B&rft.date=2023-05-15&rft.volume=107&rft.issue=19&rft.spage=195151&rft.issn=1098-0121&0163-1829&1550-235X&0556-2805&2469-9969&rft.au=Huang,%20Tsung-Sheng&Chou,%20Yang-Zhi&Baldwin,%20Christopher%20L.&Wu,%20Fengcheng&Hafezi,%20Mohammad&rft.genre=article&rft_id=info:doi/10.1103/PhysRevB.107.195151&
 Search print copy at ETH Library

Files in this item

FilesSizeFormatOpen in viewer

There are no files associated with this item.

Publication type

Show simple item record