@article{19276,
  abstract     = {Impurity motion in a many-body environment has been a central issue in the field of low-temperature physics for decades. In bosonic quantum fluids, the onset of a drag force experienced by point-like objects is due to collective environment excitations, driven by the exchange of linear momentum between the impurity and the many-body bath. In this work we consider a rotating impurity, with the aim of exploring how angular momentum is exchanged with the surrounding bosonic environment. In order to elucidate these issues, we employ a quasiparticle approach based on the angulon theory, which allows us to effectively deal with the non-trivial algebra of quantized angular momentum in the presence of a many-body environment. We uncover how impurity dressing by environmental excitations can establish an exchange channel, whose effectiveness crucially depends on the initial state of the impurity. Remarkably, we find that there is a critical value of initial angular momentum, above which this channel effectively freezes.},
  author       = {Cappellaro, Alberto and Bighin, Giacomo and Cherepanov, Igor and Lemeshko, Mikhail},
  issn         = {1089-7690},
  journal      = {Journal of Chemical Physics},
  number       = {7},
  publisher    = {AIP Publishing},
  title        = {{Environment-limited transfer of angular momentum in Bose liquids}},
  doi          = {10.1063/5.0253451},
  volume       = {162},
  year         = {2025},
}

@article{19880,
  abstract     = {We investigate quantum transport in a two-dimensional electron system coupled to a chiral molecular potential, demonstrating how molecular chirality and orientation affect charge and spin transport properties. We propose a minimal model for realizing true chiral symmetry breaking on a magnetized surface, with a crucial role played by the tilt angle of the molecular dipole with respect to the surface. For non-zero tilting, we show that the Hall response exhibits clear signatures of chirality-induced effects, in both charge- and spin-resolved observables. Concerning the former, tilted enantiomers produce asymmetric Hall conductances and, even more remarkably, the persistence of this feature in the absence of spin–orbit coupling (SOC) signals how the enantiospecific charge response results from electron scattering off the molecular potential. Concerning spin-resolved observables where SOC plays a relevant role, we reveal that chiral symmetry breaking is crucial in enabling spin-flipping processes.},
  author       = {Al Hyder, Ragheed and Lemeshko, Mikhail and Cappellaro, Alberto},
  issn         = {1089-7690},
  journal      = {The Journal of Chemical Physics},
  number       = {23},
  publisher    = {AIP Publishing},
  title        = {{Quantum transport in the presence of a chiral molecular potential}},
  doi          = {10.1063/5.0271155},
  volume       = {162},
  year         = {2025},
}

@article{14321,
  abstract     = {We demonstrate the possibility of a coupling between the magnetization direction of a ferromagnet and the tilting angle of adsorbed achiral molecules. To illustrate the mechanism of the coupling, we analyze a minimal Stoner model that includes Rashba spin–orbit coupling due to the electric field on the surface of the ferromagnet. The proposed mechanism allows us to study magnetic anisotropy of the system with an extended Stoner–Wohlfarth model and argue that adsorbed achiral molecules can change magnetocrystalline anisotropy of the substrate. Our research aims to motivate further experimental studies of the current-free chirality induced spin selectivity effect involving both enantiomers.},
  author       = {Al Hyder, Ragheed and Cappellaro, Alberto and Lemeshko, Mikhail and Volosniev, Artem},
  issn         = {1089-7690},
  journal      = {The Journal of Chemical Physics},
  keywords     = {Physical and Theoretical Chemistry, General Physics and Astronomy},
  number       = {10},
  publisher    = {AIP Publishing},
  title        = {{Achiral dipoles on a ferromagnet can affect its magnetization direction}},
  doi          = {10.1063/5.0165806},
  volume       = {159},
  year         = {2023},
}