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The Angular Dependence of the Critical Current of BaCeO3 Doped YBa2Cu3O6+x Thin Films

IR@NPL: CSIR-National Physical Laboratory, New Delhi


Field	Value

Title	The Angular Dependence of the Critical Current of BaCeO3 Doped YBa2Cu3O6+x Thin Films

Creator	Malmivirta, M. Yao, L. D. Inkinen, S. Huhtinen, H. Palonen, H. Jha, R. Awana, V. P. S. Dijken, S. van Paturi, P.

Subject	Electronics and Electrical Engineering Applied Physics/Condensed Matter

Description	The angular dependencies of the critical current of BaCeO3 (BCO) doped YBa2Cu3O6+x (YBCO) thin films grown with pulsed laser deposition (PLD) on SrTiO3 (001) were systematically investigated. The BCO concentration in the YBCO matrix was varied between 0-8 wt.%. Transmission electron microscopy confirmed that the 4% BCO containing sample has point-like, partly agglomerated BCO particles with diameter of 2.5 nm. The dopant degrades the crystal quality of YBCO but improves its in-field current carrying performance especially at low temperatures. The BCO addition affects the angular dependence of the critical current by broadening the B parallel to ab-axis peak of YCBO but no c-axis peak is seen, which is contrary to BaZrO3 doped films made by PLD. Although the particles are point-like, it is found that a model featuring only isotropic pinning centers is not sufficient to describe the angular dependence of the samples where B parallel to ab-axis of YCBO.

Publisher	Institute of Electrical and Electronics Engineers (IEEE)

Date	2015-06

Type	Article PeerReviewed

Format	application/pdf

Identifier	http://npl.csircentral.net/2042/1/348.pdf Malmivirta, M. and Yao, L. D. and Inkinen, S. and Huhtinen, H. and Palonen, H. and Jha, R. and Awana, V. P. S. and Dijken, S. van and Paturi, P. (2015) The Angular Dependence of the Critical Current of BaCeO3 Doped YBa2Cu3O6+x Thin Films. IEEE Transactions on Applied Superconductivity, 25 (3). ISSN 1051-8223

Relation	http://npl.csircentral.net/2042/