scholarly journals Self-energy and lifetime of Shockley and image states on Cu(100) and Cu(111): Beyond theGWapproximation of many-body theory

2007 ◽  
Vol 76 (24) ◽  
Author(s):  
M. G. Vergniory ◽  
J. M. Pitarke ◽  
P. M. Echenique
1979 ◽  
Vol 70 (9) ◽  
pp. 4086-4090 ◽  
Author(s):  
Marcello Baldo ◽  
Renato Pucci ◽  
Pasquale Tomasello

We discuss the various many-body effects that contribute to the large optical nonlinearities of semiconductors close to the band edge. Such effects are: band filling, screening due to the excited electron-hole pairs, band-gap shrinkage, energy broadening and excitonic enhancement. Compared to the Coulomb self-energy corrections, the radiative self-energies are normally small. However, they determine the transition rates in the rate equations of the photons and electrons.


1968 ◽  
Vol 111 (1) ◽  
pp. 392-416 ◽  
Author(s):  
K DIETRICH ◽  
K HARA

1970 ◽  
Vol 31 (C4) ◽  
pp. C4-99-C4-104
Author(s):  
T. P. DAS ◽  
C. M. DUTTA ◽  
N. C. DUTTA

1988 ◽  
Vol 88 (12) ◽  
pp. 7791-7798 ◽  
Author(s):  
Leslie J. Root ◽  
Frank H. Stillinger ◽  
Gary E. Washington

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