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Environment effects on effective magnetic exchange integrals and local spectroscopy of extended strongly correlated systems

Marie-Bernadette Lepetit, Nicolas Suaud, Alain Gelle, Vincent Robert
2003 Journal of Chemical Physics  

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2003 pre-print arXiv:cond-mat/0312377v1 fatcat:lm7i67dgivefrf653k3b4fjnoy
The present work analyzes the importance of the different components of the environment effects on the local spectroscopy of extended strongly correlated systems. It has been found that the usual formal charge definition of the charge transfer and Madelung potential are far too crude for an accurate determination of the local excitation energies in embedded fragment calculations. A criterion for the validation of the embedding against the infinite system density of states has been proposed.
doi:10.1063/1.1540620 fatcat:27gyadmhxvfcjkrxlwabkzebwa
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Marie-Bernadette Lepetit, Nicolas Suaud, Alain Gelle, Vincent Robert. "Environment effects on effective magnetic exchange integrals and local spectroscopy of extended strongly correlated systems." Journal of Chemical Physics 118.9 (2003) 3966-3973