Bibliographic Details
| Title: |
Emergent Trion-Phonon Coupling in Atomically-Reconstructed MoSe$_2$-WSe$_2$ Heterobilayers |
| Authors: |
Meier, Sebastian, Zhumagulov, Yaroslav, Dietl, Matthias, Parzefall, Philipp, Kempf, Michael, Holler, Johannes, Nagler, Philipp, Junior, Paulo E. Faria, Fabian, Jaroslav, Korn, Tobias, Schüller, Christian |
| Publication Year: |
2023 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Mesoscale and Nanoscale Physics |
| More Details: |
In low-temperature resonant Raman experiments on MoSe$_2$-WSe$_2$ heterobilayers, we identify a hybrid interlayer shear mode (HSM) with an energy, close to the interlayer shear mode (SM) of the heterobilayers, but with a much broader, asymmetric lineshape. The HSM shows a pronounced resonance with the intralayer hybrid trions (HX$^-$) of the MoSe$_2$ and WSe$_2$ layers, only. No resonance with the neutral intralayer excitons is found. First-principles calculations reveal a strong coupling of Q-valley states, which are delocalized over both layers and participate in the HX$^-$, with the SM. This emerging trion-phonon coupling may be relevant for experiments on gate-controlled heterobilayers.
Comment: 6 pages, 4 figures |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/2306.01483 |
| Accession Number: |
edsarx.2306.01483 |
| Database: |
arXiv |
