Self-consistent Born approximation for the hole motion in the three-band model: A comparison with photoemission experiments

Autor: Oziel F. de Alcantara Bonfim, George Reiter, Oleg A. Starykh
Rok vydání: 1995
Předmět:
Zdroj: Physical Review B. 52:12534-12537
ISSN: 1095-3795
0163-1829
DOI: 10.1103/physrevb.52.12534
Popis: The dispersion relation of the single hole in the $CuO_2$ plane is calculated in the self-consistent Born approximation for the three-band Hamiltonian. We find that direct oxygen-oxygen hopping removes the strong anisotropy of the hole spectrum around the band minima. Our results compare well with recent photoemission measurements of the single-hole dispersion relation in $Sr_2 CuO_2 Cl_2$.
9 pages, RevTex, 4 postscript figures in one ps-file, Latex file and figures have been uuencoded; to appear in Phys.Rev.B
Databáze: OpenAIRE