Modeling flux pinning in thin undoped and BazRo3-doped YBCO films

P. Paturi; M. Irjala; H. Huhtinen; Asger Bech Abrahamsen

doi:10.1063/1.3066857

Modeling flux pinning in thin undoped and BazRo3-doped YBCO films

P. Paturi, M. Irjala, H. Huhtinen, Asger Bech Abrahamsen

University of Turku

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Abstract

A simple model based on distributions of twin boundaries, dislocations, and BaZrO3 nanorods is presented to describe the Jc properties of undoped and BaZrO3 (BZO)-doped YBa2Cu3Ox thin films. The model accurately describes the shape of Jc(B,T) curves of the films, when the pinning site distributions are taken from distributions of twin spacings and BZO nanorods from transmission electron microscope images. Thus, assuming that the model can be used for prediction of the Jc properties, we conclude that for enhancement of undoped films more crystalline defects are needed and for doped films a dopant that would create slightly larger rods would be optimal. ©2009 American Institute of Physics

Original language	English
Journal	Journal of Applied Physics
Volume	105
Issue number	2
Pages (from-to)	023904
ISSN	0021-8979
DOIs	https://doi.org/10.1063/1.3066857
Publication status	Published - 2009

Bibliographical note

Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

Materials research
Superconducting materials for the energy sector

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title = "Modeling flux pinning in thin undoped and BazRo3-doped YBCO films",

abstract = "A simple model based on distributions of twin boundaries, dislocations, and BaZrO3 nanorods is presented to describe the Jc properties of undoped and BaZrO3 (BZO)-doped YBa2Cu3Ox thin films. The model accurately describes the shape of Jc(B,T) curves of the films, when the pinning site distributions are taken from distributions of twin spacings and BZO nanorods from transmission electron microscope images. Thus, assuming that the model can be used for prediction of the Jc properties, we conclude that for enhancement of undoped films more crystalline defects are needed and for doped films a dopant that would create slightly larger rods would be optimal. {\textcopyright}2009 American Institute of Physics",

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note = "Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.",

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AU - Irjala, M.

AU - Huhtinen, H.

AU - Abrahamsen, Asger Bech

N1 - Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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N2 - A simple model based on distributions of twin boundaries, dislocations, and BaZrO3 nanorods is presented to describe the Jc properties of undoped and BaZrO3 (BZO)-doped YBa2Cu3Ox thin films. The model accurately describes the shape of Jc(B,T) curves of the films, when the pinning site distributions are taken from distributions of twin spacings and BZO nanorods from transmission electron microscope images. Thus, assuming that the model can be used for prediction of the Jc properties, we conclude that for enhancement of undoped films more crystalline defects are needed and for doped films a dopant that would create slightly larger rods would be optimal. ©2009 American Institute of Physics

AB - A simple model based on distributions of twin boundaries, dislocations, and BaZrO3 nanorods is presented to describe the Jc properties of undoped and BaZrO3 (BZO)-doped YBa2Cu3Ox thin films. The model accurately describes the shape of Jc(B,T) curves of the films, when the pinning site distributions are taken from distributions of twin spacings and BZO nanorods from transmission electron microscope images. Thus, assuming that the model can be used for prediction of the Jc properties, we conclude that for enhancement of undoped films more crystalline defects are needed and for doped films a dopant that would create slightly larger rods would be optimal. ©2009 American Institute of Physics

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KW - Superconducting materials for the energy sector

KW - Superledende materialer til energisektoren

KW - Materialeforskning

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Modeling flux pinning in thin undoped and BazRo3-doped YBCO films

Abstract

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Keywords

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