Giant valley zeeman splittingin vanadium-doped WSe2 monolayers.

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Autor(es): dc.creatorSousa, Frederico Barros de-
Autor(es): dc.creatorMatos, Matheus Josué de Souza-
Autor(es): dc.creatorCarvalho, Bruno Ricardo de-
Autor(es): dc.creatorLiu, Mingzu-
Autor(es): dc.creatorAmes, Alessandra-
Autor(es): dc.creatorZhou, Da-Gang-
Autor(es): dc.creatorResende, Geovani Carvalho de-
Autor(es): dc.creatorYu, Zhuohang-
Autor(es): dc.creatorLafeta, Lucas-
Autor(es): dc.creatorPimenta, Marcos Assunção-
Autor(es): dc.creatorTerrones, Mauricio-
Autor(es): dc.creatorTeodoro, Marcio Daldin-
Autor(es): dc.creatorChacham, Helio-
Autor(es): dc.creatorMoreira, Leandro Malard-
Data de aceite: dc.date.accessioned2025-08-21T15:44:34Z-
Data de disponibilização: dc.date.available2025-08-21T15:44:34Z-
Data de envio: dc.date.issued2025-08-08-
Data de envio: dc.date.issued2023-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/20782-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/full/10.1002/smll.202405434-
Fonte completa do material: dc.identifierhttps://doi.org/10.1002/smll.202405434-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1023024-
Descrição: dc.description2D dilute magnetic semiconductors (DMS)based on transition metal dichalcogenides (TMD)offer an innovative pathway for advancing spintronic technologies, including the potential to exploit phenomena such as the valley Zeeman effect. How ever, the impact of magnetic ordering on the valley degeneracy breaking and on the enhancement of the optical transitions g-factors of these materials remains an open question. Here, a giant effective g- factors ranging between ≈−27 and−69 for the bound exciton at 4 K in vanadium-doped WSe2 monolayers, obtained through magneto-photolumine scence (PL) experiments is reported. This giant g-factor disappears at room temperature, suggesting that this response is associated with a magnetic ordering of the vanadium impurity states at low temperatures. Ab initio calculations for the vanadium-doped WSe2 monolayer confirm the existence of magnetic ordering of the vanadium states, which leads to degeneracy breaking of the valence bands at K and K′. A phenomenological analysis is employed to correlate this splitting with the measured enhanced effective g-factor.The findings shed light on the potential of defect engineering of 2D materials for spintronic applications.-
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Título: dc.titleGiant valley zeeman splittingin vanadium-doped WSe2 monolayers.-
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