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Title: Ground state properties of 3d metals from self-consistent GW approach

Journal Article · · Journal of Physics. Condensed Matter

The self consistent GW approach (scGW) has been applied to calculate the ground state properties (equilibrium Wigner–Seitz radius S WZ and bulk modulus B) of 3d transition metals Sc, Ti, V, Fe, Co, Ni, and Cu. The approach systematically underestimates SWZ with average relative deviation from the experimental data of about 1% and it overestimates the calculated bulk modulus with relative error of about 25%. We show that scGW is superior in accuracy as compared to the local density approximation but it is less accurate than the generalized gradient approach for the materials studied. If compared to the random phase approximation, scGW is slightly less accurate, but its error for 3d metals looks more systematic. Lastly, the systematic nature of the deviation from the experimental data suggests that the next order of the perturbation theory should allow one to reduce the error.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1412662
Report Number(s):
BNL-114423-2017-JA; R&D Project: PO015; KC0202030; TRN: US1800321
Journal Information:
Journal of Physics. Condensed Matter, Vol. 29, Issue 46; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (3)

Assessment of the GLLB-SC potential for solid-state properties and attempts for improvement journal February 2018
Assessment of the GLLB-SC potential for solid-state properties and attempts for improvement text January 2017
Effect of propagator renormalization on the band gap of insulating solids text January 2018