Zobrazeno 1 - 10
of 257
pro vyhledávání: '"Qu Fanyao"'
We develop a model, which incorporates both intra- and intervalley scatterings to master equation, to explore exciton valley coherence in monolayer WS$_2$ subjected to magnetic field. For linearly polarized (LP) excitation accompanied with an initial
Externí odkaz:
http://arxiv.org/abs/2306.06977
Autor:
S., Borges H., Júnior, Celso A. N., Brandão, David S., Liu, Fujun, Pereira, V. V. R., Xie, S. J., Qu, Fanyao, Alcalde, A. M.
We report dissipative dynamics of two valley excitons residing in the $K$ and $K^\prime$-valleys of bare WSe$_2$ monolayer and the one being integrated into a bimodal optical cavity. In the former, only when the exciton-field detunings in the $K$ and
Externí odkaz:
http://arxiv.org/abs/2209.04558
A bipartite lattice with chiral symmetry is known to host zero energy flat bands if the numbers of the two sublattices are different. We demonstrate that this mechanism of producing flat bands can be realized on graphene by introducing periodic vacan
Externí odkaz:
http://arxiv.org/abs/2110.09691
Publikováno v:
Phys. Rev. B 105, 155414 (2022)
We elaborate that single-layer graphene with periodic vacancies can have a band structure containing nodal lines or nodal loops, opening the possibility of graphene-based electronic or spintronic devices with novel functionalities. The principle is t
Externí odkaz:
http://arxiv.org/abs/2109.12468
A nodal-line semimetal phase which is enforced by the symmetries of the material is interesting from fundamental and application standpoints. We demonstrate that such a phase of matter can be engineered by a simple method: Introducing vacancies in ce
Externí odkaz:
http://arxiv.org/abs/2108.05502
Publikováno v:
2D Materials 6.4 (2019): 045014
We developed a comprehensive theoretical framework focusing on many-body effects of exciton species in monolayer WS$_2$, including bright and dark excitons, and intra- and inter-valley biexcitons, to investigate valley dynamics in monolayer WS$_2$ su
Externí odkaz:
http://arxiv.org/abs/2004.07379
Publikováno v:
In Computer Physics Communications April 2023 285
Akademický článek
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Publikováno v:
Phys. Status Solidi RRL, 1-6 (2016)
We propose a physical model based on disordered (a hole punched inside a material) monolayer transition metal dichalcogenides (TMDs) to demonstrate a large-gap quantum valley Hall insulator. We find an emergence of bound states lying inside the bulk
Externí odkaz:
http://arxiv.org/abs/1601.06728
Autor:
Jiang, Xinxin a, Zuo, Xi a, Han, Li a, Li, Heming a, Gao, Quan a, Li, Xiaoteng c, Zheng, Xingwen a, Jiang, Xiaohui b, Cui, Bin a, Li, Dongmei a, ⁎, Liu, De-sheng a, b, ⁎, Qu, Fanyao d
Publikováno v:
In Computational Materials Science October 2020 183