Sternheimer equation - TDDFT.org

Sternheimer equation - TDDFT.org Sternheimer equation - TDDFT.org

09.11.2014 Views

Polarization of a periodic system Linear response can get derivatives but not the polarization itself. Berry phase with “strings” of k-points: Single-point Berry phase (from just the Γ point) Yaschenko, Fu, Resca, and Resta, PRB 58, 1222 (1998)

Si k.p perturbation

Si k.p perturbation

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