TY  - JOUR
AU  - Sangiovanni, G.
AU  - Toschi, A.
AU  - Koch, E.
AU  - Held, K.
AU  - Capone, M.
AU  - Castellani, C.
AU  - Gunnarsson, O.
AU  - Mo, S.-K.
AU  - Allen, J. W.
AU  - Kim, H.-D.
AU  - Sekiyama, A.
AU  - Yamasaki, A.
AU  - Suga, S.
AU  - Metcalf, P.
TI  - Static versus dynamical mean-field theory of Mott antiferromagnets
JO  - Physical review / B
VL  - 73
IS  - 20
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-52189
SP  - 205121
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - Studying the antiferromagnetic phase of the Hubbard model by dynamical mean-field theory, we observe striking differences with static (Hartree-Fock) mean field: The Slater band is strongly renormalized and spectral weight is transferred to spin-polaron sidebands. Already for intermediate values of the interaction U the overall bandwidth is larger than in the Hartree-Fock mean field and the gap is considerably smaller. Such differences survive any renormalization of U. Our photoemission experiments for Cr-doped V2O3 show spectra qualitatively well described by dynamical mean-field theory.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000237950500028
DO  - DOI:10.1103/PhysRevB.73.205121
UR  - https://juser.fz-juelich.de/record/52189
ER  -