Angular Behavior of Jc in GdBCO-Coated Conductors with Crossed Columnar Defects Around ab Plane

Tetsuro Sueyoshi, Yasuya Iwanaga, Takanori Fujioyoshi, Yohsuke Takai, Masashi Mukaida, Masaki Kudo, Kazuhiro Yasuda, Norito Ishikawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We investigated in detail the flux pinning properties around B || ab for GdBCO-coated conductors with crossed columnar defects produced by heavy-ion irradiation, where the crossing angle Θi was systematically controlled in the range from ±5° to ±15° relative to the ab plane. A single peak of critical current density Jc centered at B || ab occurs for the crossing angle of Θ i = ±5°, where an upward shift in Jc can be observed compared to an unirradiated sample. As the crossing angle is larger, the Jc peak becomes smaller and broader while maintaining the peak at B || ab. Increasing Θi up to ±15°, three Jc peaks emerges at B || ab and at the two irradiation angles, independently from the others. The crossover behavior from the single peak to the triple one around the ab plane is attributed to the strong line tension energy of flux lines around B || ab , which derives from the elliptical nature of the core of flux lines in anisotropic superconductors.

Original languageEnglish
Article number7778174
JournalIEEE Transactions on Applied Superconductivity
Volume27
Issue number4
DOIs
Publication statusPublished - Jun 1 2017

Fingerprint

conductors
Fluxes
Flux pinning
Heavy Ions
Defects
defects
Ion bombardment
Heavy ions
Superconducting materials
Irradiation
flux pinning
ion irradiation
critical current
crossovers
heavy ions
current density
irradiation
shift
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Angular Behavior of Jc in GdBCO-Coated Conductors with Crossed Columnar Defects Around ab Plane. / Sueyoshi, Tetsuro; Iwanaga, Yasuya; Fujioyoshi, Takanori; Takai, Yohsuke; Mukaida, Masashi; Kudo, Masaki; Yasuda, Kazuhiro; Ishikawa, Norito.

In: IEEE Transactions on Applied Superconductivity, Vol. 27, No. 4, 7778174, 01.06.2017.

Research output: Contribution to journalArticle

Sueyoshi, Tetsuro ; Iwanaga, Yasuya ; Fujioyoshi, Takanori ; Takai, Yohsuke ; Mukaida, Masashi ; Kudo, Masaki ; Yasuda, Kazuhiro ; Ishikawa, Norito. / Angular Behavior of Jc in GdBCO-Coated Conductors with Crossed Columnar Defects Around ab Plane. In: IEEE Transactions on Applied Superconductivity. 2017 ; Vol. 27, No. 4.
@article{5eb16f5cac214bb9bf0142b7b851b083,
title = "Angular Behavior of Jc in GdBCO-Coated Conductors with Crossed Columnar Defects Around ab Plane",
abstract = "We investigated in detail the flux pinning properties around B || ab for GdBCO-coated conductors with crossed columnar defects produced by heavy-ion irradiation, where the crossing angle Θi was systematically controlled in the range from ±5° to ±15° relative to the ab plane. A single peak of critical current density Jc centered at B || ab occurs for the crossing angle of Θ i = ±5°, where an upward shift in Jc can be observed compared to an unirradiated sample. As the crossing angle is larger, the Jc peak becomes smaller and broader while maintaining the peak at B || ab. Increasing Θi up to ±15°, three Jc peaks emerges at B || ab and at the two irradiation angles, independently from the others. The crossover behavior from the single peak to the triple one around the ab plane is attributed to the strong line tension energy of flux lines around B || ab , which derives from the elliptical nature of the core of flux lines in anisotropic superconductors.",
author = "Tetsuro Sueyoshi and Yasuya Iwanaga and Takanori Fujioyoshi and Yohsuke Takai and Masashi Mukaida and Masaki Kudo and Kazuhiro Yasuda and Norito Ishikawa",
year = "2017",
month = "6",
day = "1",
doi = "10.1109/TASC.2016.2637338",
language = "English",
volume = "27",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

TY - JOUR

T1 - Angular Behavior of Jc in GdBCO-Coated Conductors with Crossed Columnar Defects Around ab Plane

AU - Sueyoshi, Tetsuro

AU - Iwanaga, Yasuya

AU - Fujioyoshi, Takanori

AU - Takai, Yohsuke

AU - Mukaida, Masashi

AU - Kudo, Masaki

AU - Yasuda, Kazuhiro

AU - Ishikawa, Norito

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We investigated in detail the flux pinning properties around B || ab for GdBCO-coated conductors with crossed columnar defects produced by heavy-ion irradiation, where the crossing angle Θi was systematically controlled in the range from ±5° to ±15° relative to the ab plane. A single peak of critical current density Jc centered at B || ab occurs for the crossing angle of Θ i = ±5°, where an upward shift in Jc can be observed compared to an unirradiated sample. As the crossing angle is larger, the Jc peak becomes smaller and broader while maintaining the peak at B || ab. Increasing Θi up to ±15°, three Jc peaks emerges at B || ab and at the two irradiation angles, independently from the others. The crossover behavior from the single peak to the triple one around the ab plane is attributed to the strong line tension energy of flux lines around B || ab , which derives from the elliptical nature of the core of flux lines in anisotropic superconductors.

AB - We investigated in detail the flux pinning properties around B || ab for GdBCO-coated conductors with crossed columnar defects produced by heavy-ion irradiation, where the crossing angle Θi was systematically controlled in the range from ±5° to ±15° relative to the ab plane. A single peak of critical current density Jc centered at B || ab occurs for the crossing angle of Θ i = ±5°, where an upward shift in Jc can be observed compared to an unirradiated sample. As the crossing angle is larger, the Jc peak becomes smaller and broader while maintaining the peak at B || ab. Increasing Θi up to ±15°, three Jc peaks emerges at B || ab and at the two irradiation angles, independently from the others. The crossover behavior from the single peak to the triple one around the ab plane is attributed to the strong line tension energy of flux lines around B || ab , which derives from the elliptical nature of the core of flux lines in anisotropic superconductors.

UR - http://www.scopus.com/inward/record.url?scp=85017504643&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017504643&partnerID=8YFLogxK

U2 - 10.1109/TASC.2016.2637338

DO - 10.1109/TASC.2016.2637338

M3 - Article

AN - SCOPUS:85017504643

VL - 27

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 4

M1 - 7778174

ER -