Enhanced transport properties in YBa 2 Cu 3 O x films with crossed columnar defects of various inclination angles

J. H. Park, D. H. Kim, S. Y. Shim, Y. H. Kim, J. M. Lee, T. S. Hahn, Jeffrey Hettinger, D. G. Steel, K. E. Gray, B. Glagola, J. Lee, Z. G. Khim

Research output: Contribution to journalArticle

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Abstract

We have studied the effect of heavy-ion irradiation on the transport properties of YBa 2 Cu 3 O x thin films. Columnar defects parallel to the c axis (0°) and crossed columnar defects with various inclination angles (θ= ± 10°, ± 20°, and ± 40°) were introduced into films by 1.3 GeV U-ion irradiation with dose equivalent to 1 T vortex density. Transport properties including irreversibility fields, activation energies, and critical current densities have been measured in magnetic fields applied parallel to the c axis. The best transport properties were observed in samples of θ = ± 10° in most of the H-T plane we studied, consistent with the splay model. However, the relative enhancement of the critical current density in the θ= ± 10° compared to the 0° sample was not as large as in the case of a single crystal suggesting that in films the point defects also play an important part in flux pinning.

Original languageEnglish (US)
Pages (from-to)310-316
Number of pages7
JournalPhysica C: Superconductivity and its Applications
Volume281
Issue number4
DOIs
StatePublished - Aug 10 1997

Fingerprint

Transport properties
inclination
transport properties
Ion bombardment
ion irradiation
Defects
critical current
defects
current density
Flux pinning
Heavy Ions
flux pinning
Point defects
Heavy ions
point defects
Dosimetry
heavy ions
Vortex flow
Activation energy
Single crystals

All Science Journal Classification (ASJC) codes

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

Cite this

Park, J. H. ; Kim, D. H. ; Shim, S. Y. ; Kim, Y. H. ; Lee, J. M. ; Hahn, T. S. ; Hettinger, Jeffrey ; Steel, D. G. ; Gray, K. E. ; Glagola, B. ; Lee, J. ; Khim, Z. G. / Enhanced transport properties in YBa 2 Cu 3 O x films with crossed columnar defects of various inclination angles In: Physica C: Superconductivity and its Applications. 1997 ; Vol. 281, No. 4. pp. 310-316.
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abstract = "We have studied the effect of heavy-ion irradiation on the transport properties of YBa 2 Cu 3 O x thin films. Columnar defects parallel to the c axis (0°) and crossed columnar defects with various inclination angles (θ= ± 10°, ± 20°, and ± 40°) were introduced into films by 1.3 GeV U-ion irradiation with dose equivalent to 1 T vortex density. Transport properties including irreversibility fields, activation energies, and critical current densities have been measured in magnetic fields applied parallel to the c axis. The best transport properties were observed in samples of θ = ± 10° in most of the H-T plane we studied, consistent with the splay model. However, the relative enhancement of the critical current density in the θ= ± 10° compared to the 0° sample was not as large as in the case of a single crystal suggesting that in films the point defects also play an important part in flux pinning.",
author = "Park, {J. H.} and Kim, {D. H.} and Shim, {S. Y.} and Kim, {Y. H.} and Lee, {J. M.} and Hahn, {T. S.} and Jeffrey Hettinger and Steel, {D. G.} and Gray, {K. E.} and B. Glagola and J. Lee and Khim, {Z. G.}",
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Park, JH, Kim, DH, Shim, SY, Kim, YH, Lee, JM, Hahn, TS, Hettinger, J, Steel, DG, Gray, KE, Glagola, B, Lee, J & Khim, ZG 1997, ' Enhanced transport properties in YBa 2 Cu 3 O x films with crossed columnar defects of various inclination angles ', Physica C: Superconductivity and its Applications, vol. 281, no. 4, pp. 310-316. https://doi.org/10.1016/S0921-4534(97)01482-2

Enhanced transport properties in YBa 2 Cu 3 O x films with crossed columnar defects of various inclination angles . / Park, J. H.; Kim, D. H.; Shim, S. Y.; Kim, Y. H.; Lee, J. M.; Hahn, T. S.; Hettinger, Jeffrey; Steel, D. G.; Gray, K. E.; Glagola, B.; Lee, J.; Khim, Z. G.

In: Physica C: Superconductivity and its Applications, Vol. 281, No. 4, 10.08.1997, p. 310-316.

Research output: Contribution to journalArticle

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AU - Park, J. H.

AU - Kim, D. H.

AU - Shim, S. Y.

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AU - Lee, J. M.

AU - Hahn, T. S.

AU - Hettinger, Jeffrey

AU - Steel, D. G.

AU - Gray, K. E.

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AU - Lee, J.

AU - Khim, Z. G.

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