The effect of BZO dopant concentration on magnetically obtained Birr and Bc2 in YBCO thin films deposited on STO substrates

11th European Conference on Applied Superconductivity

Paturi, P.^1 ; Malmivirta, M.^1 ; Palonen, H.^1,2 ; Huhtinen, H.^1

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

20014, Finland^1

National Graduate School on Nanoscience, Finland^2

关键词: BZO doping;    Coherence lengths;    Dopant concentrations;    Irreversibility fields;    Upper critical fields;    YBa2Cu3O6+x;    YBCO thin film;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/1/012040/pdf
DOI  :  10.1088/1742-6596/507/1/012040

来源: IOP

【 摘 要 】

The effect of BaZrO3(BZO) dopant concentration (0-9 wt-%) 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) (STO) substrates. It is found that the magnetic determination of Birrand Bc2works well. The results show that BZO-doping increases Bc2in all concentrations, implying a change in the coherence length and band structure of the superconductor.