Calculating optical absorption spectra for large systems using linear-scaling density functional theory
Calculating optical absorption spectra for large systems using linear-scaling density functional theory
复制标题
使用线性尺度密度泛函理论计算大型系统的光学吸收光谱
DOI:
--
复制
发表时间:
2011
期刊:
影响因子:
--
通讯作者:
P. Haynes
中科院分区:
文献类型:
--
作者:
L. Ratcliff;N. Hine;P. Haynes
A new method for calculating optical absorption spectra within linear-scaling density functional theory (LS-DFT) is presented, incorporating a scheme for optimizing a set of localized orbitals to accurately represent unoccupied Kohn-Sham states. Three different schemes are compared and the most promising of these, based on the use of a projection operator, has been implemented in a fully functional LS-DFT code. The method has been applied to the calculation of optical absorption spectra for the metal-free phthalocyanine molecule and the conjugated polymer poly(para-phenylene). Excellent agreement with results from a traditional DFT code is obtained.
DOI:
10.1063/1.3492379
发表时间:
2010
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Hine ND
通讯作者:
Hine ND
影响因子:
3.7
作者:
Hine, Nicholas D. M.;Robinson, Mark;Mostofi, Arash A.
通讯作者:
Mostofi, Arash A.