@article{ef79d330338d4f0499aa28e140fbb1ef,
title = "Enhancing the superconducting properties of Y-Ba-Cu-O by CuO2 site doping",
abstract = "The incorporation of certain cations such as Zn2+ onto the ab-planes of the YBa2Cu3O7-δ (123) lattice is known to have effects on the superconducting critical transition temperature. On manipulating the distance between the dopant sites, isolated weak superconducting regions with dimensions comparable to the coherence length of YBCO can be introduced into melt textured large YBCO grains. This paper presents a study using electron microprobe analysis, microscopy and transport property measurements on the processing and the distribution of Zn2+ in Zn-YBCO so as to understand as well as optimize the processing conditions, doping level, Tc, flux pinning behaviour and field trapping properties of these materials. These results were correlated with the solidification mechanisms of YBCO as well as the size of weak superconducting regions induced by Zn2+.",
keywords = "Melt texturing, Transport properties, YBCO, Zn-doping",
author = "Zhou, {Yu X.} and Wai Lo and Tang, {Tong B.} and Kamel Salama",
note = "Funding Information: Manuscript received September 18, 2000. This work was supported by the State of Texas through the Texas Center for Superconductivity at the University of Houston, Texas, USA and by the Research Grant Committee of the Hong Kong SAR Government under RGC/97-98/71. Yu X. Zhou is with the Texas Center for Superconductivity, University of Houston, Houston, Texas 77204, USA, on leave from Hong Kong Baptist University, Hong Kong SAR, People's Republic of China (telephone: 71 3-743-4543, e-mail: zyxiang@hotmaiI.com). Wai Lo is with the Texas Center for Superconductivity and Department of Mechanical Engineering, University of Houston, Houston, Texas 77204, USA (telephone: 71 3-743-4530, e-mail: wlo@uh.edu). Tong B. Tang is with the Department of Physics, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR,People's Republic of China (telephone: 852-2339-7036, e-mail: tbtang@hkbu.edu.hk). Kamel Salama is with the Texas Center for Superconductivity and Department of Mechanical Engineering, University of Houston, Houston, Texas 77204, USA (telephone: 713-743-4514, e-mail: ksalama@uh.edu). Funding Information: Average Distance between Zn Sites (nm) The authors would like to thank Kent Ross for his help with EPMA. This work was supported by the State of Texas through the Texas Center for Superconductivity at the University of Houston and the Research Grant Committee of The Hong Kong SAR Government under RGC/97-9817 1.; 2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",
year = "2001",
month = mar,
doi = "10.1109/77.919868",
language = "English (US)",
volume = "11",
pages = "3700--3705",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "1 III",
}