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

Дата и время публикации : 2000-03-01T21:46:24Z

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

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Коментарии к cтатье: 4 RevTeX pgs, 3 PDF figures
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con, cond-mat.str-el

Краткий обзор статьи: 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 hnu=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.

Category: Physics