Pinning effect on critical dynamics in YBa2Cu3O7-δ films with inherent random disorder and with columnar defects

Jin Tae Kim; W. N. Kang; H. R. Lim; D. H. Kim; Y. K. Park; J. C. Park; C. H. Kim; T. S. Hahn; S. S. Choi; J. D. Hettinger; K. E. Gray

doi:10.1016/S0921-4534(98)00160-9

Pinning effect on critical dynamics in YBa₂Cu₃O7-δ films with inherent random disorder and with columnar defects

Jin Tae Kim, W. N. Kang, H. R. Lim, D. H. Kim, Y. K. Park, J. C. Park, C. H. Kim, T. S. Hahn, S. S. Choi, J. D. Hettinger, K. E. Gray

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

5 Scopus citations

Abstract

The in-plane longitudinal resistivities of YBa₂Cu₃O_7-δ (YBCO) films before and after Sn ion irradiation of a matching field 1 T have been measured as a function of magnetic field H (≤ 6 T) and temperature T. The extracted fluctuation part of the conductivity σ_xx*(T, H) of the unirradiated sample with inherent random disorder exhibits 3D-XY scaling behavior that reveals dynamic critical exponent z = 1.86 ± 0.1 and v ≈ 0.669. The inherent random disorder increases the dynamic critical exponent z to 1.86 ± 0.1 from the value of 1.5 that is for detwinned YBCO single crystal. After the irradiation, the fluctuation conductivity enhanced by the strong pinning of vortex shows deviation from the scaling behavior for the unirradiated one, suggesting that the critical dynamics is strongly perturbed by the strong pinning due to columnar defects.

Original language	English (US)
Pages (from-to)	99-103
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	301
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4534(98)00160-9
State	Published - May 20 1998
Externally published	Yes

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/S0921-4534(98)00160-9

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Kim, J. T., Kang, W. N., Lim, H. R., Kim, D. H., Park, Y. K., Park, J. C., Kim, C. H., Hahn, T. S., Choi, S. S., Hettinger, J. D., & Gray, K. E. (1998). Pinning effect on critical dynamics in YBa₂Cu₃O7-δ films with inherent random disorder and with columnar defects. Physica C: Superconductivity and its applications, 301(1-2), 99-103. https://doi.org/10.1016/S0921-4534(98)00160-9

@article{73a8705d953d4581a98ff5fe6828393f,

title = "Pinning effect on critical dynamics in YBa2Cu3O7-δ films with inherent random disorder and with columnar defects",

abstract = "The in-plane longitudinal resistivities of YBa2Cu3O7-δ (YBCO) films before and after Sn ion irradiation of a matching field 1 T have been measured as a function of magnetic field H (≤ 6 T) and temperature T. The extracted fluctuation part of the conductivity σxx*(T, H) of the unirradiated sample with inherent random disorder exhibits 3D-XY scaling behavior that reveals dynamic critical exponent z = 1.86 ± 0.1 and v ≈ 0.669. The inherent random disorder increases the dynamic critical exponent z to 1.86 ± 0.1 from the value of 1.5 that is for detwinned YBCO single crystal. After the irradiation, the fluctuation conductivity enhanced by the strong pinning of vortex shows deviation from the scaling behavior for the unirradiated one, suggesting that the critical dynamics is strongly perturbed by the strong pinning due to columnar defects.",

author = "Kim, {Jin Tae} and Kang, {W. N.} and Lim, {H. R.} and Kim, {D. H.} and Park, {Y. K.} and Park, {J. C.} and Kim, {C. H.} and Hahn, {T. S.} and Choi, {S. S.} and Hettinger, {J. D.} and Gray, {K. E.}",

note = "Funding Information: This work in Korea is supported by Korea Research Institute of Standards and Science, in part by Ministry of Science and Technology, Ministry of Education through BSRI-97-2437 and Yeungnam University (DHK), and the work in USA is supported by DOE under contract No. W-31-109-ENG-38 and NSF-STC under Contract No. DMR 91-20000.",

year = "1998",

month = may,

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doi = "10.1016/S0921-4534(98)00160-9",

language = "English (US)",

volume = "301",

pages = "99--103",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier",

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TY - JOUR

T1 - Pinning effect on critical dynamics in YBa2Cu3O7-δ films with inherent random disorder and with columnar defects

AU - Kim, Jin Tae

AU - Kang, W. N.

AU - Lim, H. R.

AU - Kim, D. H.

AU - Park, Y. K.

AU - Park, J. C.

AU - Kim, C. H.

AU - Hahn, T. S.

AU - Choi, S. S.

AU - Hettinger, J. D.

AU - Gray, K. E.

N1 - Funding Information: This work in Korea is supported by Korea Research Institute of Standards and Science, in part by Ministry of Science and Technology, Ministry of Education through BSRI-97-2437 and Yeungnam University (DHK), and the work in USA is supported by DOE under contract No. W-31-109-ENG-38 and NSF-STC under Contract No. DMR 91-20000.

PY - 1998/5/20

Y1 - 1998/5/20

N2 - The in-plane longitudinal resistivities of YBa2Cu3O7-δ (YBCO) films before and after Sn ion irradiation of a matching field 1 T have been measured as a function of magnetic field H (≤ 6 T) and temperature T. The extracted fluctuation part of the conductivity σxx*(T, H) of the unirradiated sample with inherent random disorder exhibits 3D-XY scaling behavior that reveals dynamic critical exponent z = 1.86 ± 0.1 and v ≈ 0.669. The inherent random disorder increases the dynamic critical exponent z to 1.86 ± 0.1 from the value of 1.5 that is for detwinned YBCO single crystal. After the irradiation, the fluctuation conductivity enhanced by the strong pinning of vortex shows deviation from the scaling behavior for the unirradiated one, suggesting that the critical dynamics is strongly perturbed by the strong pinning due to columnar defects.

AB - The in-plane longitudinal resistivities of YBa2Cu3O7-δ (YBCO) films before and after Sn ion irradiation of a matching field 1 T have been measured as a function of magnetic field H (≤ 6 T) and temperature T. The extracted fluctuation part of the conductivity σxx*(T, H) of the unirradiated sample with inherent random disorder exhibits 3D-XY scaling behavior that reveals dynamic critical exponent z = 1.86 ± 0.1 and v ≈ 0.669. The inherent random disorder increases the dynamic critical exponent z to 1.86 ± 0.1 from the value of 1.5 that is for detwinned YBCO single crystal. After the irradiation, the fluctuation conductivity enhanced by the strong pinning of vortex shows deviation from the scaling behavior for the unirradiated one, suggesting that the critical dynamics is strongly perturbed by the strong pinning due to columnar defects.

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ER -

Pinning effect on critical dynamics in YBa₂Cu₃O7-δ films with inherent random disorder and with columnar defects

Abstract

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