@article {PimentaMartins2023,
	title = {Pressure tuning of minibands in MoS2/WSe2 heterostructures revealed by moir{\'e} phonons},
	journal = {Nature Nanotechnology},
	year = {2023},
	month = {Jun},
	abstract = {Moir{\'e} superlattices of two-dimensional heterostructures arose as a new platform to investigate emergent behaviour in quantum solids with unprecedented tunability. To glean insights into the physics of these systems, it is paramount to discover new probes of the moir{\'e} potential and moir{\'e} minibands, as well as their dependence on external tuning parameters. Hydrostatic pressure is a powerful control parameter, since it allows to continuously and reversibly enhance the moir{\'e} potential. Here we use high pressure to tune the minibands in a rotationally aligned MoS2/WSe2 moir{\'e} heterostructure, and show that their evolution can be probed via moir{\'e} phonons. The latter are Raman-inactive phonons from the individual layers that are activated by the moir{\'e} potential. Moir{\'e} phonons manifest themselves as satellite Raman peaks arising exclusively from the heterostructure region, increasing in intensity and frequency under applied pressure. Further theoretical analysis reveals that their scattering rate is directly connected to the moir{\'e} potential strength. By comparing the experimental and calculated pressure-induced enhancement, we obtain numerical estimates for the moir{\'e} potential amplitude and its pressure dependence. The present work establishes moir{\'e} phonons as a sensitive probe of the moir{\'e} potential as well as the electronic structures of moir{\'e} systems.},
	issn = {1748-3395},
	doi = {10.1038/s41565-023-01413-3},
	url = {https://doi.org/10.1038/s41565-023-01413-3},
	author = {Luiz G. Pimenta Martins and Ruiz-Tijerina, David A. and Occhialini, Connor A. and Park, Ji-Hoon and Song, Qian and Ang-Yu Lu and Pedro Venezuela and Luiz G. Can{\c c}ado and Mazzoni, M{\'a}rio S. C. and Matos, Matheus J. S. and Kong, Jing and Riccardo Comin}
}
