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

A.D. Gromko; D.S. Dessau (University of Colorado) K. Nakamura; Y.-D. Chuang; Yoichi Ando (Central Research Institute of Electric Power Industry)

arxiv: cond-mat/0003017 · v2 · submitted 2000-03-01 · ❄️ cond-mat.supr-con · cond-mat.str-el

Fermi Surface Topology of Bi₂Sr₂CaCu₂O_(8+d) at hν=33eV: hole or electron-like?

A.D. Gromko , Y.-D. Chuang , D.S. Dessau (University of Colorado) K. Nakamura , Yoichi Ando (Central Research Institute of Electric Power Industry) This is my paper

classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords cacuelectron-likeexistencefermisurfaceangle-resolvedarpesartifact

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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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Fermi Surface Topology of Bi₂Sr₂CaCu₂O_(8+d) at hν=33eV: hole or electron-like?

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