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Low-Energy Models for Correlated Materials: Bandwidth Renormalization from Coulombic Screening

Casula, M.; Werner, Ph.; Vaugier, L.; Aryasetiawan, Ferdi LU ; Miyake, T.; Millis, A. J. and Biermann, S. (2012) In Physical Review Letters 109(12).
Abstract
We provide a prescription for constructing Hamiltonians representing the low-energy physics of correlated electron materials with dynamically screened Coulomb interactions. The key feature is a renormalization of the hopping and hybridization parameters by the processes that lead to the dynamical screening. The renormalization is shown to be non-negligible for various classes of correlated electron materials. The bandwidth reduction effect is necessary for connecting models to materials behavior and for making quantitative predictions for low-energy properties of solids.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
109
issue
12
publisher
American Physical Society
external identifiers
  • wos:000308878500017
  • scopus:84866563084
ISSN
1079-7114
DOI
10.1103/PhysRevLett.109.126408
language
English
LU publication?
yes
id
09a212be-d0b4-41a0-8783-66d3297eb98d (old id 3187956)
date added to LUP
2012-12-06 12:07:37
date last changed
2017-09-24 03:17:02
@article{09a212be-d0b4-41a0-8783-66d3297eb98d,
  abstract     = {We provide a prescription for constructing Hamiltonians representing the low-energy physics of correlated electron materials with dynamically screened Coulomb interactions. The key feature is a renormalization of the hopping and hybridization parameters by the processes that lead to the dynamical screening. The renormalization is shown to be non-negligible for various classes of correlated electron materials. The bandwidth reduction effect is necessary for connecting models to materials behavior and for making quantitative predictions for low-energy properties of solids.},
  articleno    = {126408},
  author       = {Casula, M. and Werner, Ph. and Vaugier, L. and Aryasetiawan, Ferdi and Miyake, T. and Millis, A. J. and Biermann, S.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {12},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Low-Energy Models for Correlated Materials: Bandwidth Renormalization from Coulombic Screening},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.109.126408},
  volume       = {109},
  year         = {2012},
}