Fermi Surface Topology of Bi_{2}Sr_{2}CaCu_{2}O_{8+d} at hν=33eV: hole or electron-like?

Details Fermi Surface Topology of Bi_{2}Sr_{2}CaCu_{2}O_{8+d} at hν=33eV: hole or electron-like? Fermi Surface Topology of Bi_{2}Sr_{2}CaCu_{2}O_{8+d} at hν=33eV: hole or electron-like?

2000-03-01

arxiv.org/abs/cond-mat/0003017v2

Physics

Condensed Matter

Superconductivity

4 RevTeX pgs, 3 PDF figures

Scientific paper

We present new results from Angle-Resolved Photoemission experiments (ARPES) on overdoped Bi_{2}Sr_{2}CaCu_{2}O_{8+d} (BSCCO) crystals. With greatly improved energy and momentum resolution, we clearly identify the existence of electron-like portions of the Fermi Surface (FS) near \bar{M} at h\nu=33eV. This is consistent with previously reported data and is robust against various FS crossing criteria. It is not due to an artifact induced from \vec{k}-dependent matrix element effects. We also present evidence for a breakage in the FS pointing to the possible existence of two types of electronic components.

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