Zobrazeno 1 - 10
of 428
pro vyhledávání: '"YU Hongyi"'
Publikováno v:
Xiehe Yixue Zazhi, Vol 14, Iss 6, Pp 1149-1154 (2023)
With the breakthroughs in artificial intelligence, orthopedic surgical robots have rapidly advanced, presenting good prospects for their applications in the medical field. Prior to the clinical application of this novel medical device, ensuring high
Externí odkaz:
https://doaj.org/article/754398b9f3304ac883340758c8d30eec
We theoretically investigated the chiral phonons of honeycomb-type bilayer Wigner crystals recently discovered in van der Waals structures of layered transition metal dichalcogenides. These chiral phonons can emerge under the inversion symmetry break
Externí odkaz:
http://arxiv.org/abs/2411.01760
We numerically solve the electron-hole relative wave function of interlayer excitons in bilayer transition metal dichalcogenides, taking into account the screening effects from both the constituent transition metal dichalcogenides layers and the surr
Externí odkaz:
http://arxiv.org/abs/2410.16717
Autor:
Kai, Feng, Wang, Xiong, Xie, Yiqin, Yang, Yuhui, Watanabe, Kenji, Taniguchi, Takashi, Yu, Hongyi, Yao, Wang, Cui, Xiaodong
This letter reports a time resolved pump-probe reflectance spectroscopic study on moir\'e excitons in a twisted monolayer WS2/WSe2 heterostructure. By probing at the resonant energies of intralayer excitons, we observed their distinct temporal tracks
Externí odkaz:
http://arxiv.org/abs/2410.04893
Hybrid exciton in moir\'e superlattices of two-dimensional (2D) semiconductors inherits the electric dipole, strong moir\'e trapping, and stacking optical selection rules from its interlayer part, whereas the intralayer part is intended for enhancing
Externí odkaz:
http://arxiv.org/abs/2410.03443
Publikováno v:
Phys. Rev. B 110, 155410 (2024)
We investigated the interlayer coupling effect in homobilayer structures of MSi2X4 with M = Mo/W and X = N/P/As. Through the combination of first-principles calculations and analytical formulations, the equilibrium interlayer distance, layer energy d
Externí odkaz:
http://arxiv.org/abs/2405.06555
Publikováno v:
Phys. Rev. B 109, 165422 (2024)
We theoretically investigated the coupling between the exciton internal and center-of-mass motions in monolayer transition metal dichalcogenides subjected to a periodic electrostatic potential. The coupling leads to the emergence of multiple absorpti
Externí odkaz:
http://arxiv.org/abs/2402.13759
Autor:
Hou, Yuhang, Yu, Hongyi
Publikováno v:
2D Mater. 11, 025019 (2024)
We theoretically examined how the dielectric screening of two-dimensional layered materials affects the dipolar interaction between interlayer excitons in few-layer van der Waals structures. Our analysis indicates that the dipolar interaction is larg
Externí odkaz:
http://arxiv.org/abs/2311.06022
Publikováno v:
Front. Phys. 19, 43210 (2024)
We theoretically studied the exciton geometric structure in layered semiconducting transition metal dichalcogenides. Based on a three-orbital tight-binding model for Bloch electrons which incorporates their geometric structures, an effective exciton
Externí odkaz:
http://arxiv.org/abs/2310.14856
Publikováno v:
Chinese Phys. B 32 107308 (2023)
Using the Lindemann criterion, we analyzed the quantum and thermal melting of electronic/excitonic crystals recently discovered in two-dimensional (2D) semiconductor moir\'e patterns. We show that the finite 2D screening of the atomically thin materi
Externí odkaz:
http://arxiv.org/abs/2306.01456