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ID 46727
file
creator
Ukita, R.
Harada, Y.
Furukawa, T.
Itagaki, K.
Tokiwa, K
subject
Ba2Ca4Cu5O10 (O 1-xFx)2
F0245
apical fluorine
STM
NDC
Physics
abstract
We investigate the scanning tunneling microscopy (STM) on the multi-layered cuprate superconductor Ba2Ca4Cu5O10 (O 1-x Fx)2 (F0245, Tc =79 K, x = 0.72).
The STM images show clear atomic lattice structures and large random spot structures. Among the regular square-lattice atomic corrugation with the period of the lattice constant a ~0.38 nm, another kind of atomic spots arranged into the four-fold cross shaped clusters is clearly observed along the diagonal direction with the period of 0.26 nm. These clusters are being distributed inhomogeneously, which are due to the charge imbalance associated with the apical O/F rate. The apical O and F sites are also identified from the positions of such clusters in the STM topographic images.
description
This research was supported by Grant-in-Aid for Scientific Research (No. 19540370) from JSPS, Japan.
journal title
Physica C: Superconductivity and its Applications
volume
Volume 471
issue
Issue 21-22
start page
698
end page
700
date of issued
2011-11
publisher
Elsevier B.V.
issn
0921-4534
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2011. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
relation url
department
Graduate School of Integrated Arts and Sciences