### Abstract

Using time-dependent local density theory and a Lang-Kohn zero-order density profile n0(z), the authors present accurate values of the jellium half-space susceptibility chi ( omega ,q11,z,z') for complex frequencies omega in the upper half-plane. For rs=2.07 the numerically-obtained susceptibility is compared with a useful mimic function, chi bulk( omega ,q11, mod z-z' mod :n), based on the response of a uniform electron gas of density n equal to an average of n0(z) between the points z and z'. This is found to be an excellent approximation away from the real frequency axis, especially when the surface-parallel wavevector q11 is large.

Original language | English |
---|---|

Pages (from-to) | 6127-6136 |

Number of pages | 10 |

Journal | Journal of Physics Condensed Matter |

Volume | 20 |

Issue number | 36 |

DOIs | |

Publication status | Published - 1987 |

Externally published | Yes |

## Fingerprint Dive into the research topics of 'Microscopic electronic susceptibility, χ (ω, q11, z, z'), of the jellium halfspace: a successful average-density ansatz for complex frequency'. Together they form a unique fingerprint.

## Cite this

Dobson, J., & Harris, G. (1987). Microscopic electronic susceptibility, χ (ω, q11, z, z'), of the jellium halfspace: a successful average-density ansatz for complex frequency.

*Journal of Physics Condensed Matter*,*20*(36), 6127-6136. https://doi.org/10.1088/0022-3719/20/36/014