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@PHDTHESIS{Schlipf:22714,
author = {Schlipf, Martin},
title = {{H}eyd-{S}cuseria-{E}rnzerhof {S}creened-{E}xchange
{H}ybrid {F}unctional for {C}omplex {M}aterials:
{A}ll-{E}lectron {I}mplementation and {A}pplication},
volume = {58},
school = {RWTH Aachen},
type = {Dr. (Univ.)},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {PreJuSER-22714},
isbn = {978-3-89336-857-0},
series = {Schriften des Forschungszentrums Jülich.
Schlüsseltechnologien / Key Technologies},
pages = {XV, 170 S.},
year = {2012},
note = {Record converted from VDB: 12.11.2012; RWTH Aachen, Diss.,
2012},
abstract = {The design of suitable materials for application in future
devices requires a detailed understanding of their
electronic and structural properties. The $\textit{ab
initio}$ method density functional theory (DFT) has emerged
as the most commonly applied materials. The limits of the
predictive power of DFT are set by the availability of
precise approximations to the exchange-correlation
functional. In ths thesis, we developed a scheme to realize
screened nonlocal potentials within the full-potential
linearized augmented-plane-wave (FLAPW) method and applied
it, in particular, to the screened Heyd-Scuseria-Ernzerhof
(HSE) functional. Incorporating a certain fraction of
nonlocal exchange, hybrid functionals improve on the
conventional local functions by partly correcting for the
spurios self interaction. This self interaction is most
prominent in materials with localized states, so that we
expect an improved description of transition-metal and
rare-earth compounds. The strong localization of the
$\textit{d}$ and $\textit{f}$ electrons in these materials
complicates a description by pseudopotential methods, so
that they are particularly suited for the all-electron FLAPW
scheme. The nonlocal exchange is computationally very
demanding, hence, we discuss two apprximations to improve
the computationally very demanding, hence, we discuss two
approximations to improve the computation time of hybrid
functional calculations: a spacial restriction of the
nonlocal exchange and the employment of a
smaller$\textit{k}$-point mesh in the calculation of the
nonlocal exchange. We demonstrate that both schemes are
feasible for selected materials, but not in general for all
materials. [...]},
cin = {PGI-1 / IAS-1},
cid = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
typ = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
url = {https://juser.fz-juelich.de/record/22714},
}