GW100: A Plane Wave Perspective for Small Molecules

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	GW100: A Plane Wave Perspective for Small Molecules
	Maggio, Emanuele ; Liu, Peitao ; van Setten, Michiel J. ; Kresse, Georg
刊名	JOURNAL OF CHEMICAL THEORY AND COMPUTATION
	2017-02-01
卷号	13 期号:2 页码:635-648
ISSN号	1549-9618
通讯作者	Kresse, G (reprint author), Univ Vienna, Fac Phys, Sensengasse 8-12, A-1090 Vienna, Austria. ; Kresse, G (reprint author), Univ Vienna, Ctr Computat Mat Sci, Sensengasse 8-12, A-1090 Vienna, Austria.
中文摘要	In a recent work, van Setten and co-workers have presented a carefully converged G(0)W(0) study of 100 closed shell molecules [J. Chem. Theory Comput. 2015, 11, 5665-5687]. For two different codes they found excellent agreement to within a few 10 meV if identical Gaussian basis sets were used. We inspect the same set of molecules using the projector augmented wave method and the Vienna ab initio simulation package (VASP). For the ionization potential, the basis set extrapolated plane wave results agree very well with the Gaussian basis sets, often reaching better than 50 meV agreement. In order to achieve this agreement, we correct for finite basis set errors as well as errors introduced by periodically repeated images. For positive electron affinities differences between Gaussian basis sets and VASP are slightly larger. We attribute this to larger basis set extrapolation errors for the Gaussian basis sets. For quasi particle (QP) resonances above the vacuum level, differences between VASP and Gaussian basis sets are, however, found to be substantial. This is tentatively explained by insufficient basis set convergence of the Gaussian type orbital calculations as exemplified for selected test cases.
学科主题	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
收录类别	SCI
资助信息	Austrian Science Fund (FWF) within the Spezialforschungsbereich Vienna Computational Materials Laboratory (SFB ViCoM) [F41]; Deutsche Forschungsgruppe Research Unit [FOR 1346]; China Scholarship Council (CSC)-FWF Scholarship Program
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78308]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Maggio, Emanuele,Liu, Peitao,van Setten, Michiel J.,et al. GW100: A Plane Wave Perspective for Small Molecules[J]. JOURNAL OF CHEMICAL THEORY AND COMPUTATION,2017,13(2):635-648.
APA	Maggio, Emanuele,Liu, Peitao,van Setten, Michiel J.,&Kresse, Georg.(2017).GW100: A Plane Wave Perspective for Small Molecules.JOURNAL OF CHEMICAL THEORY AND COMPUTATION,13(2),635-648.
MLA	Maggio, Emanuele,et al."GW100: A Plane Wave Perspective for Small Molecules".JOURNAL OF CHEMICAL THEORY AND COMPUTATION 13.2(2017):635-648.