Quasi-Particle Properties in Copper Using the GW Approximation

doi:10.1088/0256-307X/32/1/017101

Chin. Phys. Lett.

2015, Vol. 32

Issue (01): 017101 DOI: 10.1088/0256-307X/32/1/017101

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

Quasi-Particle Properties in Copper Using the GW Approximation

YI Zhi-Jun^**

Department of Physics, China University of Mining and Technology, Xuzhou 221116

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YI Zhi-Jun 2015 Chin. Phys. Lett. 32 017101

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Abstract The electronic structures, absorption spectra and colors of Cu are calculated. Calculations are performed in the GW approximation (GWA) approximation, where G refers to Green's function and W is the dynamically screened Coulomb interaction. The calculated absorption spectra and color of Cu based on the density functional theory and the GWA are presented, and the calculated results within the GWA agree well with measurements. The calculated results indicate that many-body effects play an important role for the quasi-particle property calculations of Cu.

Published: 23 December 2014

PACS:	71.15.Mb	(Density functional theory, local density approximation, gradient and other corrections)
	71.15.Qe	(Excited states: methodology)
	71.20.Be	(Transition metals and alloys)
	71.35.Cc	(Intrinsic properties of excitons; optical absorption spectra)
	72.15.Lh	(Relaxation times and mean free paths)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/32/1/017101 OR https://cpl.iphy.ac.cn/Y2015/V32/I01/017101

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