A4 Refereed article in a conference publication
Growth and BZO-doping of the nanostructured YBCO thin films on buffered metal substrates
Authors: Huhtinen H, Irjala M, Paturi P, Grivel JC, Tse YY, Falter M, Eickemeyer J, Zhao Y
Publisher: ELSEVIER SCIENCE BV
Publication year: 2010
Journal: Physica C: Superconductivity and its Applications
Journal name in source: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Journal acronym: PHYSICA C
Volume: 470
First page : S1013
Last page: S1015
Number of pages: 3
ISSN: 0921-4534
DOI: https://doi.org/10.1016/j.physc.2010.02.088(external)
Abstract
The growth of the nanostructured YBa(2)Cu(3)O(6+x) (YBCO) films is investigated for the first time on biaxially textured NiW substrates used in coated conductor technology. The optimization process of superconducting layers is made in wide magnetic field and temperature range in order to understand the vortex pinning structure and mechanism in our films prepared from nanostructured material. Structural analysis shows that growth mechanism in YBCO films grown on NiW is completely different when compared to YBCO on STO. Films on NiW are much rougher, there is huge in-plane variation of YBCO crystals and moreover out-of-plane long range lattice ordering is greatly reduced. Magnetic measurements demonstrate that j(c) in films grown on NiW is higher in high magnetic fields and low temperatures. This effect is connected to the amount of pinning centres observed in films on metal substrates which are effective at low temperature range. (C) 2010 Elsevier B.V. All rights reserved.
The growth of the nanostructured YBa(2)Cu(3)O(6+x) (YBCO) films is investigated for the first time on biaxially textured NiW substrates used in coated conductor technology. The optimization process of superconducting layers is made in wide magnetic field and temperature range in order to understand the vortex pinning structure and mechanism in our films prepared from nanostructured material. Structural analysis shows that growth mechanism in YBCO films grown on NiW is completely different when compared to YBCO on STO. Films on NiW are much rougher, there is huge in-plane variation of YBCO crystals and moreover out-of-plane long range lattice ordering is greatly reduced. Magnetic measurements demonstrate that j(c) in films grown on NiW is higher in high magnetic fields and low temperatures. This effect is connected to the amount of pinning centres observed in films on metal substrates which are effective at low temperature range. (C) 2010 Elsevier B.V. All rights reserved.
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