Abstract

Polycrystalline samples of the Bi-2201 phase of BiPbSr1.15-x Ba x La0.85CuO6+δ have been prepared by the conventional solid-state reaction method. Through the Ba-substitution for Sr, the lattice becomes large while T c decreases gradually. With increasing x(Ba), the hole concentration in the CuO2 plane decreases despite the increase in the number of excess oxygen. The suppression of the superconductivity may be due to the decrease in the hole concentration in the CuO2 plane and the increase in the local lattice-distortion caused by excess oxygen.

Details

Title
Effects of the Ba-substitution for Sr in the Bi-2201 phase of BiPb(Sr,La)2CuO6+δ
Author
Hayakawa, D 1 ; Watanabe, T 1 ; Luo, T 1 ; Kawamata, T 1 ; Noji, T 1 ; Kato, M 1 ; Koike, Y 1 

 Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan 
Publication year
2018
Publication date
Jul 2018
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2572371360
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.