Zobrazeno 1 - 10
of 9 227
pro vyhledávání: '"trions"'
The effect of polaron formation on the ground state of excitons, trions and biexcitons confined in CsPbBr$_3$ nanocrystals is studied in the framework of effective mass Hamiltonians, using a Haken-like (Bajaj) potential for carrier-phonon coupling. T
Externí odkaz:
http://arxiv.org/abs/2411.09526
We reveal a quantum coherent state characterized by composite bosonic trions, wherein paired fermions further associate with bosons, in one-dimensional Bose-Fermi mixtures. The system features onsite boson-fermion attraction and pair hopping of spinl
Externí odkaz:
http://arxiv.org/abs/2411.06854
We study theoretically the neutral and charged excitons in two-dimensional semiconductors with anisotropic dispersion of charge carriers. Such a situation is realized in CrSBr-based van der Waals heterostructures. We calculate the binding energies of
Externí odkaz:
http://arxiv.org/abs/2411.15493
Autor:
Kumar, Sangeet S., Mulkerin, Brendan C., Tiene, Antonio, Marchetti, Francesca Maria, Parish, Meera M., Levinsen, Jesper
The reduced dielectric screening in atomically thin semiconductors leads to remarkably strong electron interactions. As a result, bound electron-hole pairs (excitons) and charged excitons (trions), which have binding energies in the hundreds and tens
Externí odkaz:
http://arxiv.org/abs/2411.09376
Autor:
Llusar, Jordi, Climente, Juan I.
Publikováno v:
Chemistry of Materials, 2024
Recent synthetic progress has enabled the controlled fusion of colloidal CdSe/CdS quantum dots in order to form dimers manifesting electronic coupling in their optical response. While this ``artificial H2 molecule'' constitutes a milestone towards th
Externí odkaz:
http://arxiv.org/abs/2408.06706
Autor:
Van Tuan, Dinh, Dery, Hanan
Treating the trion problem as an effective two-body system with exciton and electron components, we identify component exchange as the reason leading to trion formation. This mechanism can be visualized as a hole that toggles back and forth between t
Externí odkaz:
http://arxiv.org/abs/2407.17445
Autor:
Liu, Zhida, Wang, Haonan, Liu, Xiaohui, Ni, Yue, Gao, Frank, Arash, Saba, Kim, Dong Seob, Liu, Xiangcheng, Zeng, Yongxin, Quan, Jiamin, Huang, Di, Watanabe, Kenji, Taniguchi, Takashi, Baldini, Edoardo, MacDonald, Allan H., Shih, Chih-Kang, Yang, Li, Li, Xiaoqin
Many fascinating properties discovered in graphene and transition metal dichalcogenide (TMD) moir\'e superlattices originate from flat bands and enhanced many-body effects. Here, we discover new many-electron excited states in TMD homobilayers. As op
Externí odkaz:
http://arxiv.org/abs/2407.17025
Autor:
Rosa, Bárbara L. T., Junior, Paulo E. Faria, Cadore, Alisson R., Yang, Yuhui, Koulas-Simos, Aris, Palekar, Chirag C., Tongay, Sefaattin, Fabian, Jaroslav, Reitzenstein, Stephan
The impressive physics and applications of intra- and interlayer excitons in a transition metal dichalcogenide twisted-bilayer make these systems compelling platforms for exploring the manipulation of their optoelectronic properties through electrica
Externí odkaz:
http://arxiv.org/abs/2407.08063
Autor:
Kiper, Natasha, Adlong, Haydn S., Christianen, Arthur, Kroner, Martin, Watanabe, Kenji, Taniguchi, Takashi, Imamoglu, Atac
Moir\'e heterostructures consisting of transition metal dichalcogenide (TMD) hetero- and homobilayers have emerged as a promising material platform to study correlated electronic states. Optical signatures of strong correlations in the form of Mott-W
Externí odkaz:
http://arxiv.org/abs/2407.20905
Autor:
Jindal, V., Mourzidis, K., Balocchi, A., Robert, C., Li, P., Van Tuan, D., Lombez, L., Lagarde, D., Renucci, P., Taniguchi, T., Watanabe, K., Dery, H., Marie, X.
The optical emission spectra of semiconducting transition-metal dichalcogenide monolayers highlight fascinating recombination processes of charged excitons (trions). When charge tunable WSe2 monolayers are moderately doped with electrons, a strong lu
Externí odkaz:
http://arxiv.org/abs/2406.02095