Cargando…

Optical Absorption Spectra Calculated Using Linear-Scaling Density-Functional Theory

The development of linear-scaling density functional theory (LS-DFT) has made ab initio calculations on systems containing thousands of atoms possible. These systems range from nanostructures to biomolecules. These methods rely on the use of localized basis sets, which are optimised for the represen...

Descripción completa

Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Ratcliff, Laura (Autor)
Autor Corporativo: SpringerLink (Online service)
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Cham : Springer International Publishing : Imprint: Springer, 2013.
Edición:1st ed. 2013.
Colección:Springer Theses, Recognizing Outstanding Ph.D. Research,
Temas:
Acceso en línea:Texto Completo

MARC

LEADER 00000nam a22000005i 4500
001 978-3-319-00339-9
003 DE-He213
005 20220118195546.0
007 cr nn 008mamaa
008 130511s2013 sz | s |||| 0|eng d
020 |a 9783319003399  |9 978-3-319-00339-9 
024 7 |a 10.1007/978-3-319-00339-9  |2 doi 
050 4 |a QC173.4.A87 
050 4 |a QD461 
072 7 |a PHN  |2 bicssc 
072 7 |a SCI074000  |2 bisacsh 
072 7 |a PHN  |2 thema 
082 0 4 |a 539  |2 23 
100 1 |a Ratcliff, Laura.  |e author.  |4 aut  |4 http://id.loc.gov/vocabulary/relators/aut 
245 1 0 |a Optical Absorption Spectra Calculated Using Linear-Scaling Density-Functional Theory  |h [electronic resource] /  |c by Laura Ratcliff. 
250 |a 1st ed. 2013. 
264 1 |a Cham :  |b Springer International Publishing :  |b Imprint: Springer,  |c 2013. 
300 |a XI, 116 p.  |b online resource. 
336 |a text  |b txt  |2 rdacontent 
337 |a computer  |b c  |2 rdamedia 
338 |a online resource  |b cr  |2 rdacarrier 
347 |a text file  |b PDF  |2 rda 
490 1 |a Springer Theses, Recognizing Outstanding Ph.D. Research,  |x 2190-5061 
505 0 |a Density Functional Theory -- Linear-Scaling Methods -- Theoretical Spectroscopy -- Basis Sets and Band Structures -- Conduction States: Methods and Applications -- Results and Discussion. 
520 |a The development of linear-scaling density functional theory (LS-DFT) has made ab initio calculations on systems containing thousands of atoms possible. These systems range from nanostructures to biomolecules. These methods rely on the use of localized basis sets, which are optimised for the representation of occupied Kohn-Sham states but do not guarantee an accurate representation of the unoccupied states.  This is problematic if one wishes to combine the power of LS-DFT with that of theoretical spectroscopy, which provides a direct link between simulation and experiment.  In this work a new method is presented for optimizing localized functions to accurately represent the unoccupied states, thus allowing theoretical spectroscopy of large systems. Results are presented for optical absorption spectra calculated using the ONETEP code, but the method is equally applicable to other spectroscopies and LS formulations. Other topics covered include a study of some simple one dimensional basis sets and the presentation of two methods for band structure calculation using localized basis sets, both of which have important implications for the use of localized basis sets within LS-DFT. 
650 0 |a Atomic structure  . 
650 0 |a Molecular structure . 
650 0 |a Condensed matter. 
650 0 |a Lasers. 
650 1 4 |a Atomic and Molecular Structure and Properties. 
650 2 4 |a Condensed Matter Physics. 
650 2 4 |a Laser. 
710 2 |a SpringerLink (Online service) 
773 0 |t Springer Nature eBook 
776 0 8 |i Printed edition:  |z 9783319003405 
776 0 8 |i Printed edition:  |z 9783319033730 
776 0 8 |i Printed edition:  |z 9783319003382 
830 0 |a Springer Theses, Recognizing Outstanding Ph.D. Research,  |x 2190-5061 
856 4 0 |u https://doi.uam.elogim.com/10.1007/978-3-319-00339-9  |z Texto Completo 
912 |a ZDB-2-PHA 
912 |a ZDB-2-SXP 
950 |a Physics and Astronomy (SpringerNature-11651) 
950 |a Physics and Astronomy (R0) (SpringerNature-43715)