Pashitskii, E.A.; Pentegov, V.I.; Semenov, A.V.
(Condensed Matter Physics, 1999)
It is shown that the strong anisotropy of the one-particle electron spectrum,
due to the presence of extended saddle-point features (ESPF) close to the
Fermi level in the hole-type cuprates YBCO and BSCCO, leads to the ...