Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1999-04-06
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, RevTeX, uses epsf.sty and multicol.sty
Scientific paper
10.1103/PhysRevB.60.9850
A link between the spin fluctuation and the "fermiology" is explored for the single-band Hubbard model within the fluctuation exchange (FLEX) approximation. We show that the experimentally observed peak position of the spin structure in the high T_C cuprates can be understood from the model that reproduces the experimentally observed Fermi surface. In particular, both the variation of the incommensurability of the peak in the spin structure and the evolution of the Fermi surface with hole doping in La_{2-x}Sr_xCuO_4 may be understood with a second nearest neighbor hopping decreasing with hole doping.
Aoki Hideo
Arita Ryotaro
Kuroki Kazuhiko
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