Magneto-optics in a van der Waals magnet tuned by self-hybridized polaritons
Controlling quantum materials with light is of fundamental and technological importance. By utilizing the strong coupling of light and matter in optical cavities , recent studies were able to modify some of their most defining features . Here we study the magneto-optical properties of a van der Waal...
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Published in | Nature (London) Vol. 620; no. 7974; pp. 533 - 537 |
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Main Authors | , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Nature Publishing Group
17.08.2023
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Subjects | |
Online Access | Get full text |
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Summary: | Controlling quantum materials with light is of fundamental and technological importance. By utilizing the strong coupling of light and matter in optical cavities
, recent studies were able to modify some of their most defining features
. Here we study the magneto-optical properties of a van der Waals magnet that supports strong coupling of photons and excitons even in the absence of external cavity mirrors. In this material-the layered magnetic semiconductor CrSBr-emergent light-matter hybrids called polaritons are shown to substantially increase the spectral bandwidth of correlations between the magnetic, electronic and optical properties, enabling largely tunable optical responses to applied magnetic fields and magnons. Our results highlight the importance of exciton-photon self-hybridization in van der Waals magnets and motivate novel directions for the manipulation of quantum material properties by strong light-matter coupling. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 SC0012509 USDOE Office of Science (SC) |
ISSN: | 0028-0836 1476-4687 |
DOI: | 10.1038/s41586-023-06275-2 |