Dieng, L.
, Tyson, T.
, Croft, M.
, Dogan, T.
, Kim, C.
, Woicik, J.
, Grow, J.
and Ignatov, A.
(2002),
Observation of Changes in the Atomic and Electronic Structure of Single-Crystal Yba<sub>2</sub>Cu<sub>3</sub>O<sub>6.6</sub> Accompanying Bromination, Physical Review B (Condensed Matter and Materials Physics)
(Accessed October 13, 2025)
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Observation of Changes in the Atomic and Electronic Structure of Single-Crystal Yba2Cu3O6.6 Accompanying Bromination
Published
Author(s)
L M. Dieng, T A. Tyson, Mark Croft, T Dogan, C Y. Kim, , J Grow, A Y. Ignatov
Abstract
To understand the role of bromination in the recovery of superconductivity in underdoped YBCO, the spatially resolved local structural changes in brominated single crystals have been measured and compared to those in a normal crystal. In polarized x-ray absorption measurements direct evidence for the transfer of hole density into the CuO2 planes due to bromination were observed. Measurements of the local atomic structure about the Ba, Cu and Br atoms, as well as c-axis x-ray diffraction data, reveal that the brominated YBCO structure has significant structural disorder. Modeling of the x-ray absorption data reveal that Br exists as BaBr2.Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
66
Issue
No. 1
Pub Type
Journals
Keywords
bromination, YBCO
Citation
Issues
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Created June 30, 2002, Updated October 12, 2021