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Title: High-Field Pinning Potential in YBCO Films with Nanoengineered Pinning Centres
Authors: Collazos, J. C.
Güner, S. B.
Çelik, M. Eren
Oprea, A.
Gencer, A.
Crisan, A.
Keywords: YBCO films
Pulsed laser deposition
Frequency dependence
AC susceptibility
Critical current density
Pinning potential
Issue Date: 2015
Publisher: Springer
Source: 4th International Conference on Superconductivity and Magnetism -- APR 27-MAY 02, 2014 -- Kervansaray Lara Hotel & Convent Ctr, Antalya, TURKEY
Abstract: Frequency-dependent AC susceptibility measurements have been used to estimate the critical current densities and pinning potential of two 1.1-mu m-thick YBCO films with nanoengineered pinning centres. The films were grown by pulsed laser deposition using a target with 4 % BaZrO3 nanoinclusions. Data were analysed in the framework of the Anderson-Kim model, collective pinning model, and a model due to Zeldov that implies a logarithmic dependence of pinning potential on the current density. It was found that the latter describes better our experimental data, and that the resulting pinning potential has reasonable high values in high magnetic field up to 9 T, indicating a high current-carrying capability in high magnetic fields.
ISSN: 1557-1939
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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