Doping dependence of the Fermi surface in Bi(Pb)2212

Details Doping dependence of the Fermi surface in Bi(Pb)2212 Doping dependence of the Fermi surface in Bi(Pb)2212

2002-01-25

arxiv.org/abs/cond-mat/0201485v1

Phys. Rev. B 66, 014502 (2002)

Physics

Condensed Matter

Superconductivity

Extended version of cond-mat/0104294: Fig.3 with explicitly resolved bilayer splitting in underdoped Bi(Pb)2212 and Appendix a

Scientific paper

10.1103/PhysRevB.66.014502

A detailed and systematic ARPES investigation of the doping-dependence of the normal state Fermi surface (FS) of modulation-free Bi(Pb)2212 is presented. The FS does not change in topology away from hole-like at any stage. The FS area does not follow the usual curve describing Tc vs x for the hole doped cuprates, but is down-shifted in doping by ca. 0.05 holes per Cu site, indicating the consequences of a significant bilayer splitting of the FS across the whole doping range. The strong k-dependence of the FS width is shown to be doping independent. The relative strength of the shadow FS has a doping dependence mirroring that of Tc.

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