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Title: STM studies of the surface structure in cleaved Bi2Sr2CuO6+delta single crystals
Authors: Shan, L ×
Ejov, A
Volodin, A
Moshchalkov, Victor
Wen, HH
Lin, CT #
Issue Date: 2003
Publisher: E D P SCIENCES
Series Title: Europhysics letters vol:61 issue:5 pages:681-687
Conference: date:Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100080, Peoples R China; Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China; Katholieke Univ Leuven, Lab Vaste Stoffys & Magnetisme, B-3001 Louvain, Belgium; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
Abstract: Low-temperature scanning tunneling microscopy (STM) was used to study the Bi-O plane of Bi2Sr2CuO6+delta (Bi-2201) single crystals cleaved in situ. The atomic-resolution STM images clearly show a commensurate modulated lattice structure. In contrast to the previous STM data obtained at room temperature, the missing atom rows" have been clearly seen at the ridges of the modulation. By comparing the low-temperature STM images of Bi-2201 and Bi-2212, we found that the modulation of the Bi-O plane in these two materials originates from the missing atom rows. The atomic steps at the surface have also been investigated at room temperature confirming that most easily exposed atomic layers in Bi-2201 are Bi-O and Sr-O planes, as in Bi-2212.
ISSN: 0295-5075
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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