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Many-body effects in TiSe2: Can GW describe an Excitonic Insulator?
M. Cazzaniga, H. Cercellier, M. Holzmann +4
We present both theoretical ab initio GW and experimental angle-resolved photoemission (ARPES) and scanning tunneling (STS) spectroscopy results on TiSe2. With respect to the densi…
Quasiparticle bandstructure effects on the {\it d} hole lifetimes of copper within the GW approximation
Andrea Marini, Rodolfo Del Sole, Angel Rubio +1
We investigate the lifetime of {\it d} holes in copper within a {\it first--principle} approximation. At the level the lifetime of the topmost {\it d} bands are in ag…
First--principles calculation of the plasmon resonance and of the reflectance spectrum of Silver in the GW approximation
Andrea Marini, Rodolfo Del Sole, Giovanni Onida
We show that the position and width of the plasmon resonance in Silver are correctly predicted by ab--initio calculations including self--energy effects within the GW approximation…
Quasiparticle Electronic structure of Copper in the GW approximation
Andrea Marini, Giovanni Onida, Rodolfo Del Sole
We show that the results of photoemission and inverse photoemission experiments on bulk copper can be quantitatively described within band-structure theory, with no evidence of eff…