Dynamic polarizabilities of rare-earth-metal atoms and dispersion coefficients for their interaction with helium atoms

@inproceedings{Chu2007DynamicPO,
  title={Dynamic polarizabilities of rare-earth-metal atoms and dispersion coefficients for their interaction with helium atoms},
  author={Xi Chu and Alexander Dalgarno and Gerrit C Groenenboom},
  year={2007}
}
The dynamic scalar and tensor polarizabilities of the rare-earth-metal atoms are calculated with timedependent density functional theory. The frequency-dependent polarizabilities at imaginary frequencies are used to determine the isotropic and orientation-dependent van der Waals coefficients for the interactions of the rare-earth-metal atoms with helium atoms. The static polarizabilities are compared with other theoretical values and with experimental results. The agreement is satisfactory in… CONTINUE READING