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ID 46730
file
creator
Shohara, K.
Ekino, T.
Watanabe, Y.
Harada, Y.
Mikusu, S.
Tokiwa, K.
Watanabe, T.
subject
Apical-fluorine cuprate
F0256
STM/STS
NDC
Physics
abstract
The atomic-scale surface electronic states on the multi-layered apical-fluorine cuprate superconductor Ba2Ca5Cu6O12 (O1−x, Fx)2 (Tc ≃ 70K) are investigated by using low temperature scanning tunneling microscopy/spectroscopy (STM/STS). The spatial gap distributions show the patch scale of ∼ 0.5 nm, which is quite shorter than the superconducting coherence length ∼ 2-3 nm of other cuprate superconducters of a few nm. The high-bias (∼ 1V) conductance map contains some characteristic spots with contrasts reverse to those at low bias, which are considered to be due to the charge unbalance of apical atoms such as O2− and F−.
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 470
start page
S160
end page
S162
date of issued
2009-12
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) 2009. 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