Journal
INDIAN JOURNAL OF PHYSICS
Volume 88, Issue 9, Pages 905-913Publisher
INDIAN ASSOC CULTIVATION SCIENCE
DOI: 10.1007/s12648-014-0488-4
Keywords
Antifer-romagnetic exchange; Bond-ordering instabilities; Mott correlations
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Funding
- U.S. National Science Foundation [DMR-1103860]
- Templeton Foundation
- DFG [BA 4371/1-1]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1103860] Funding Source: National Science Foundation
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We examine the influence of strong on-site Coulomb interactions on instabilities of the metallic state on the square lattice to general forms of bond order. The Mott correlations are accounted for by the auxiliary-boson method, and by dynamical mean field theory calculations, complementing our recent work using Gutzwiller projected variational wavefunctions. By the present methods, we find that the on-site Mott correlations do not significantly modify the structure of the bond ordering instabilities which preserve time-reversal symmetry, but they do enhance the instability towards time-reversal symmetry breaking staggered flux'' states.
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