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A detailed and systematic ARPES investigation of the doping-dependence of thenormal state Fermi surface (FS) of modulation-free (Pb,Bi)-2212 is presented.The FS does not change in topology away from hole-like at any stage. The datareveal, in addition, a number of surprises. Firstly the FS area does not followthe usual curve describing Tc vs x for the hole doped cuprates, but isdown-shifted in doping by ca. 0.05 holes per Cu site, indicating either thebreak-down of Luttinger's theorem or the consequences of a significant bi-layersplitting of the FS. Secondly, the strong k-dependence of the FS width is shownto be doping independent. Finally, the relative strength of the shadow FS has adoping dependence mirroring that of Tc.Comment: 5 pages, 4 figures (revtex

physical review. b, condensed matter

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Doping dependence of the Fermi surface in(Bi,Pb)2Sr