Abstract

Low-temperature resonant inelastic light scattering (RILS) is used to probe collective inter-moiré-band excitations in twisted WSe₂ bilayers. The paper reports twisted and hBN-encapsulated WSe₂ bilayers with twist angles near 3° and 8° plus a natural homobilayer, measures their Raman and photoluminescence response, and compares the observed RILS mode energies with miniband transitions from a continuum model adjusted to ab initio simulations.

Abstract

Low-temperature resonant inelastic light scattering (RILS) is used to probe collective inter-moiré-band excitations in twisted WSe₂ bilayers. The paper reports twisted and hBN-encapsulated WSe₂ bilayers with twist angles near 3° and 8° plus a natural homobilayer, measures their Raman and photoluminescence response, and compares the observed RILS mode energies with miniband transitions from a continuum model adjusted to ab initio simulations.

Abstract

Low-temperature resonant inelastic light scattering (RILS) is used to probe collective inter-moiré-band excitations in twisted WSe₂ bilayers. The paper reports twisted and hBN-encapsulated WSe₂ bilayers with twist angles near 3° and 8° plus a natural homobilayer, measures their Raman and photoluminescence response, and compares the observed RILS mode energies with miniband transitions from a continuum model adjusted to ab initio simulations.

Abstract

Low-temperature resonant inelastic light scattering (RILS) is used to probe collective inter-moiré-band excitations in twisted WSe₂ bilayers. The paper reports twisted and hBN-encapsulated WSe₂ bilayers with twist angles near 3° and 8° plus a natural homobilayer, measures their Raman and photoluminescence response, and compares the observed RILS mode energies with miniband transitions from a continuum model adjusted to ab initio simulations.