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Title:

Optical Signatures of Periodic Magnetization: The Moiré Zeeman Effect

Document type:
Zeitschriftenaufsatz
Author(s):
Salvador, Alex Gómez; Kuhlenkamp, Clemens; Ciorciaro, Livio; Knap, Michael; İmamoğlu, Ataç
Abstract:
Detecting magnetic order at the nanoscale is of central interest for the study of quantum magnetism in general, and the emerging field of moiré magnets in particular. Here, we analyze the exciton band structure that arises from a periodic modulation of the valley Zeeman effect. Despite long-range electron-hole exchange interactions, we find a sizable splitting in the energy of the bright circularly polarized exciton Umklapp resonances, which serves as a direct optical probe of magnetic order. We...     »
Journal title:
Physical Review Letters 2022-06
Year:
2022
Journal volume:
128
Journal issue:
23
Fulltext / DOI:
doi:10.1103/physrevlett.128.237401
Publisher:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Date of publication:
08.06.2022
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