Imaging of trapped vortices in YBCO coated conductor by scanning SQUID microscope

M. Inoue; T. Kiss; S. Koyanagi; K. Imamura; M. Takeo; Y. Iijima; K. Kakimoto; T. Saitoh; J. Matsuda; Y. Tokunaga; T. Izumi; Y. Shiohara

doi:10.1016/j.physc.2005.03.063

Imaging of trapped vortices in YBCO coated conductor by scanning SQUID microscope

M. Inoue, T. Kiss, S. Koyanagi, K. Imamura, M. Takeo, Y. Iijima, K. Kakimoto, T. Saitoh, J. Matsuda, Y. Tokunaga, T. Izumi, Y. Shiohara

Section of Measurement and Control Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We investigated trapped vortices in Y₁Ba₂Cu ₃O_7-δ (YBCO) coated conductor by using a scanning SQUID microscope (SSM). Several peculiar properties of the vortices were observed such as a large bundle of vortices at a certain position and a coexistence of positive- and negative-sign vortices. Comparing the SSM images with that of low temperature scanning laser microscopy (LTSLM) and SEM, we identified the relationship between local dissipation and position of current blocking defect. Furthermore, regular vortex images were also observed by the SSM in the region where higher J_c has been identified by the LTSLM.

Original language	English
Pages (from-to)	1068-1072
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	II
DOIs	https://doi.org/10.1016/j.physc.2005.03.063
Publication status	Published - Oct 7 2005
Event	Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity - Duration: Nov 23 2004 → Nov 25 2004

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2005.03.063

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Imaging of trapped vortices in YBCO coated conductor by scanning SQUID microscope. / Inoue, M.; Kiss, T.; Koyanagi, S.; Imamura, K.; Takeo, M.; Iijima, Y.; Kakimoto, K.; Saitoh, T.; Matsuda, J.; Tokunaga, Y.; Izumi, T.; Shiohara, Y.

In: Physica C: Superconductivity and its applications, Vol. 426-431, No. II, 07.10.2005, p. 1068-1072.

Research output: Contribution to journal › Conference article › peer-review

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title = "Imaging of trapped vortices in YBCO coated conductor by scanning SQUID microscope",

abstract = "We investigated trapped vortices in Y1Ba2Cu 3O7-δ (YBCO) coated conductor by using a scanning SQUID microscope (SSM). Several peculiar properties of the vortices were observed such as a large bundle of vortices at a certain position and a coexistence of positive- and negative-sign vortices. Comparing the SSM images with that of low temperature scanning laser microscopy (LTSLM) and SEM, we identified the relationship between local dissipation and position of current blocking defect. Furthermore, regular vortex images were also observed by the SSM in the region where higher Jc has been identified by the LTSLM.",

author = "M. Inoue and T. Kiss and S. Koyanagi and K. Imamura and M. Takeo and Y. Iijima and K. Kakimoto and T. Saitoh and J. Matsuda and Y. Tokunaga and T. Izumi and Y. Shiohara",

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T1 - Imaging of trapped vortices in YBCO coated conductor by scanning SQUID microscope

AU - Inoue, M.

AU - Kiss, T.

AU - Koyanagi, S.

AU - Imamura, K.

AU - Takeo, M.

AU - Iijima, Y.

AU - Kakimoto, K.

AU - Saitoh, T.

AU - Matsuda, J.

AU - Tokunaga, Y.

AU - Izumi, T.

AU - Shiohara, Y.

PY - 2005/10/7

Y1 - 2005/10/7

N2 - We investigated trapped vortices in Y1Ba2Cu 3O7-δ (YBCO) coated conductor by using a scanning SQUID microscope (SSM). Several peculiar properties of the vortices were observed such as a large bundle of vortices at a certain position and a coexistence of positive- and negative-sign vortices. Comparing the SSM images with that of low temperature scanning laser microscopy (LTSLM) and SEM, we identified the relationship between local dissipation and position of current blocking defect. Furthermore, regular vortex images were also observed by the SSM in the region where higher Jc has been identified by the LTSLM.

AB - We investigated trapped vortices in Y1Ba2Cu 3O7-δ (YBCO) coated conductor by using a scanning SQUID microscope (SSM). Several peculiar properties of the vortices were observed such as a large bundle of vortices at a certain position and a coexistence of positive- and negative-sign vortices. Comparing the SSM images with that of low temperature scanning laser microscopy (LTSLM) and SEM, we identified the relationship between local dissipation and position of current blocking defect. Furthermore, regular vortex images were also observed by the SSM in the region where higher Jc has been identified by the LTSLM.

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JO - Physica C: Superconductivity and its Applications

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