Artificial pinning center technology to enhance vortex pinning in YBCO coated conductors

Kaname Matsumoto; Paolo Mele

doi:10.1088/0953-2048/23/1/014001

Artificial pinning center technology to enhance vortex pinning in YBCO coated conductors

Kaname Matsumoto, Paolo Mele

Research output: Contribution to journal › Article › peer-review

256 Citations (Scopus)

Abstract

Crystalline defects on the nano-scale, which are called artificial pinning centers (APCs), were successfully introduced into high-temperature superconductors (HTS) by nanotechnology, in order to strongly pin the quantized vortices. The critical current densities, J_c, of the HTS films were dramatically improved by APCs. It is possible to form APCs in high-quality epitaxial films, keeping the desired dimensionality, volume fraction, spatial distribution and so on. The in-field J_c of HTS films at 77K was improved by one order of magnitude compared with previous values using APCs. This technology can be applied to the coated conductor technology in progress, and a high J_c has already been reported. A current outline of the research is described in this review.

Original language	English
Article number	014001
Journal	Superconductor Science and Technology
Volume	23
Issue number	1
DOIs	https://doi.org/10.1088/0953-2048/23/1/014001
Publication status	Published - 2010 Feb 22
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/23/1/014001

Cite this

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abstract = "Crystalline defects on the nano-scale, which are called artificial pinning centers (APCs), were successfully introduced into high-temperature superconductors (HTS) by nanotechnology, in order to strongly pin the quantized vortices. The critical current densities, Jc, of the HTS films were dramatically improved by APCs. It is possible to form APCs in high-quality epitaxial films, keeping the desired dimensionality, volume fraction, spatial distribution and so on. The in-field Jc of HTS films at 77K was improved by one order of magnitude compared with previous values using APCs. This technology can be applied to the coated conductor technology in progress, and a high Jc has already been reported. A current outline of the research is described in this review.",

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AB - Crystalline defects on the nano-scale, which are called artificial pinning centers (APCs), were successfully introduced into high-temperature superconductors (HTS) by nanotechnology, in order to strongly pin the quantized vortices. The critical current densities, Jc, of the HTS films were dramatically improved by APCs. It is possible to form APCs in high-quality epitaxial films, keeping the desired dimensionality, volume fraction, spatial distribution and so on. The in-field Jc of HTS films at 77K was improved by one order of magnitude compared with previous values using APCs. This technology can be applied to the coated conductor technology in progress, and a high Jc has already been reported. A current outline of the research is described in this review.

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Artificial pinning center technology to enhance vortex pinning in YBCO coated conductors

Abstract

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