The limitation mechanism of Jc-θ characteristics in YBa2Cu3O7-x thin film with a single low angle grain boundary

T. Horide; K. Matsumoto; Y. Yoshida; M. Mukaida; A. Ichinose; S. Horii

doi:10.1016/j.physc.2007.01.047

The limitation mechanism of J_c-θ characteristics in YBa₂Cu₃O_7-x thin film with a single low angle grain boundary

T. Horide, K. Matsumoto, Y. Yoshida, M. Mukaida, A. Ichinose, S. Horii

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

11 Citations (Scopus)

Abstract

The angular dependencies of critical current density (J_bc) in a YBa₂Cu₃O_7-x film on a bicrystal SrTiO₃ substrate were measured. At low magnetic field, J_bc was limited by the low angle grain boundary (LAGB), regardless of the angle, θ between the c-axis and magnetic field. However, the limitation mechanism of J_bc-θ curves changed at kink positions in high magnetic field. The vortex pinning in the grains determined J_bc for low θ, but J_bc at high θ was still limited by the LAGB. The crossover of J_bc limitation mechanism is discussed to understand the angular dependence of critical current in coated conductors.

Original language	English
Pages (from-to)	678-681
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.01.047
Publication status	Published - Oct 1 2007

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.2007.01.047

Cite this

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title = "The limitation mechanism of Jc-θ characteristics in YBa2Cu3O7-x thin film with a single low angle grain boundary",

abstract = "The angular dependencies of critical current density (Jbc) in a YBa2Cu3O7-x film on a bicrystal SrTiO3 substrate were measured. At low magnetic field, Jbc was limited by the low angle grain boundary (LAGB), regardless of the angle, θ between the c-axis and magnetic field. However, the limitation mechanism of Jbc-θ curves changed at kink positions in high magnetic field. The vortex pinning in the grains determined Jbc for low θ, but Jbc at high θ was still limited by the LAGB. The crossover of Jbc limitation mechanism is discussed to understand the angular dependence of critical current in coated conductors.",

author = "T. Horide and K. Matsumoto and Y. Yoshida and M. Mukaida and A. Ichinose and S. Horii",

note = "Funding Information: This work was supported by the CREST project of Japan Science and Technology Agency.",

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T1 - The limitation mechanism of Jc-θ characteristics in YBa2Cu3O7-x thin film with a single low angle grain boundary

AU - Horide, T.

AU - Matsumoto, K.

AU - Yoshida, Y.

AU - Mukaida, M.

AU - Ichinose, A.

AU - Horii, S.

N1 - Funding Information: This work was supported by the CREST project of Japan Science and Technology Agency.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - The angular dependencies of critical current density (Jbc) in a YBa2Cu3O7-x film on a bicrystal SrTiO3 substrate were measured. At low magnetic field, Jbc was limited by the low angle grain boundary (LAGB), regardless of the angle, θ between the c-axis and magnetic field. However, the limitation mechanism of Jbc-θ curves changed at kink positions in high magnetic field. The vortex pinning in the grains determined Jbc for low θ, but Jbc at high θ was still limited by the LAGB. The crossover of Jbc limitation mechanism is discussed to understand the angular dependence of critical current in coated conductors.

AB - The angular dependencies of critical current density (Jbc) in a YBa2Cu3O7-x film on a bicrystal SrTiO3 substrate were measured. At low magnetic field, Jbc was limited by the low angle grain boundary (LAGB), regardless of the angle, θ between the c-axis and magnetic field. However, the limitation mechanism of Jbc-θ curves changed at kink positions in high magnetic field. The vortex pinning in the grains determined Jbc for low θ, but Jbc at high θ was still limited by the LAGB. The crossover of Jbc limitation mechanism is discussed to understand the angular dependence of critical current in coated conductors.

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IS - SUPPL.

ER -

The limitation mechanism of J_c-θ characteristics in YBa₂Cu₃O_7-x thin film with a single low angle grain boundary

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