Atomic surface structures on multi-layered cuprate superconductor Ba2Ca4Cu5O10(O1−xFx)2 observed by STM

Physica C: Superconductivity and its Applications 471 巻 21-22 号 698-700 頁 2011-11 発行
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タイトル ( eng )
Atomic surface structures on multi-layered cuprate superconductor Ba2Ca4Cu5O10(O1−xFx)2 observed by STM
作成者
Ukita R.
Harada Y.
Furukawa T.
Itagaki K.
Tokiwa K
収録物名
Physica C: Superconductivity and its Applications
471
21-22
開始ページ 698
終了ページ 700
抄録
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.
著者キーワード
Ba2Ca4Cu5O10 (O 1-xFx)2
F0245
apical fluorine
STM
内容記述
This research was supported by Grant-in-Aid for Scientific Research (No. 19540370) from JSPS, Japan.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
Elsevier B.V.
発行日 2011-11
権利情報
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。
出版タイプ Author’s Original(十分な品質であるとして、著者から正式な査読に提出される版)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0921-4534
[NCID] AA11461984
[DOI] 10.1016/j.physc.2011.05.030
[DOI] https://doi.org/10.1016/j.physc.2011.05.030