In this thesis we present several advancements in the field of non-local Density Functional Theory (DFT). After a short theoretical introduction, both on DFT and some of its extensions, we introduce the non-local functional formalism as proposed by Dion et al. [PRL 92, 246401 (2004)] discussing the most important implementations. Then three main contributions are presented, starting from the stress derivation, with an application on aminoacid crystal; a new non-local functional formulation, the rVV10, derived from the original Vydrov and Van Voorhis implementation [JCP 133, 244103 (2010)], and in conclusion the extension of Density Functional Perturbation Theory for non-local functional is introduced, showing the results obtained on graphite. In the appendix we also present for the first time Moka (MOdeling pacKage for Atomistic simulations) an open-source modeling GUI for atomistic simulations.

Non-local correlation in Density Functional Theory / Sabatini, Riccardo. - (2012 Dec 21).

Non-local correlation in Density Functional Theory

Sabatini, Riccardo
2012

Abstract

In this thesis we present several advancements in the field of non-local Density Functional Theory (DFT). After a short theoretical introduction, both on DFT and some of its extensions, we introduce the non-local functional formalism as proposed by Dion et al. [PRL 92, 246401 (2004)] discussing the most important implementations. Then three main contributions are presented, starting from the stress derivation, with an application on aminoacid crystal; a new non-local functional formulation, the rVV10, derived from the original Vydrov and Van Voorhis implementation [JCP 133, 244103 (2010)], and in conclusion the extension of Density Functional Perturbation Theory for non-local functional is introduced, showing the results obtained on graphite. In the appendix we also present for the first time Moka (MOdeling pacKage for Atomistic simulations) an open-source modeling GUI for atomistic simulations.
de Gironcoli, Stefano Maria
Sabatini, Riccardo
File in questo prodotto:
File Dimensione Formato  
1963_6364_main.pdf

accesso aperto

Tipologia: Tesi
Licenza: Non specificato
Dimensione 2.47 MB
Formato Adobe PDF
2.47 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/4710
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact