The effect of BaCeO3 dopant concentration on magnetically defined BiTT and Bc2 in YBa2Cu3O6+x thin films deposited on SrTiO3 substrates

11th European Conference on Applied Superconductivity

Huhtinen, H.^1 ; Palonen, H.^1,2 ; M., Malmivirta ; R., Jha ; V.P.S., Awana ; P., Paturi

Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku, Turku

FI-20014, Finland^1

National Doctoral Programme in Nanoscience (NGS-NANO), Turku, Finland^2

Superconductivity Division, National Physical Laboratory (CSIR), New Delhi

110012, India^3

关键词: Concentration ranges;    Dopant concentrations;    Irreversibility fields;    Pinning mechanism;    Randomly distributed particles;    SrTiO3 substrates;    Upper critical fields;    YBa2Cu3O6+x;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/1/012020/pdf
DOI  :  10.1088/1742-6596/507/1/012020

来源: IOP

【 摘 要 】

The effect of BaCeO3(BCO) dopant concentration on magnetically obtained irreversibility field Birrand upper critical field Bc2is investigated in YBa2Cu3O6+x(YBCO) thin films prepared by pulsed laser deposition on SrTiO3(001) substrates. The unchanged values of Birrand Bc2are connected to the structural properties where BCO has been observed to form non-elongated and randomly distributed particles within the whole concentration range of 0-10 wt.%. This indicates a different type of flux pinning mechanism for BCO-doped YBCO than for the widely studied BaZrO3-doped YBCO where increased Birrand Bc2values were observed.