Tunable dimensionality of pinning centers from silver-ion irradiation of REBCO coated conductors. Strickland, N. M., Soman, A. A., Long, N. J., Kluth, P., Notthoff, C., Rupich, M. W., & Wimbush, S. C. IEEE Trans. Appl. Supercond., 33(5):8000205, August, 2023.
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Paper doi abstract bibtex
Paper doi abstract bibtex Heavy-ion irradiation of solids produces damage tracks with radii typically of the order of 1 nm, depending on the ion species and energy. In cuprate superconductors this is close to the coherence length, which makes these defects highly effective flux pinning centers. Varying the ion-beam energy allows tuning of the dimensionality of the defects created, with higher-energy ions tending to produce columnar tracks and lower-energy ions tending to produce point-like defects. Starting with consistent production-standard REBCO tape from American Superconductor we have explored the energy-dependence of silver-ion irradiation and characterized the irradiated samples with angle-dependent transport critical current measurements. Using silver ions with energies in the range 50 MeV to 150 MeV and fluence of 4 × 10$^{\textrm{11}}$ ions/cm$^{\textrm{2}}$ we have been able to tune the irradiation-induced damage from point-like defects to columnar tracks, manifesting in changes to the pinning landscape ranging from isotropic critical current enhancement to the production of strong peaks in the angle dependence of critical current.
@article{strickland_tunable_2023,
title = {Tunable dimensionality of pinning centers from silver-ion irradiation of {REBCO} coated conductors},
volume = {33},
issn = {1051-8223, 1558-2515, 2378-7074},
url = {/publications/10.1109/TASC.2023.3240384.pdf},
doi = {10.1109/TASC.2023.3240384},
abstract = {Heavy-ion irradiation of solids produces damage tracks with radii typically of the order of 1 nm, depending on the ion species and energy. In cuprate superconductors this is close to the coherence length, which makes these defects highly effective flux pinning centers. Varying the ion-beam energy allows tuning of the dimensionality of the defects created, with higher-energy ions tending to produce columnar tracks and lower-energy ions tending to produce point-like defects. Starting with consistent production-standard REBCO tape from American Superconductor we have explored the energy-dependence of silver-ion irradiation and characterized the irradiated samples with angle-dependent transport critical current measurements. Using silver ions with energies in the range 50 MeV to 150 MeV and fluence of 4 × 10$^{\textrm{11}}$ ions/cm$^{\textrm{2}}$ we have been able to tune the irradiation-induced damage from point-like defects to columnar tracks, manifesting in changes to the pinning landscape ranging from isotropic critical current enhancement to the production of strong peaks in the angle dependence of critical current.},
language = {en},
number = {5},
journal = {IEEE Trans. Appl. Supercond.},
author = {Strickland, N. M. and Soman, A. A. and Long, N. J. and Kluth, P. and Notthoff, C. and Rupich, M. W. and Wimbush, S. C.},
month = aug,
year = {2023},
pages = {8000205},
file = {Strickland et al. - 2023 - Tunable Dimensionality of Pinning Centers From Sil.pdf:C\:\\Users\\scwim\\OneDrive\\Work\\Zotero Library\\Strickland et al. - 2023 - Tunable Dimensionality of Pinning Centers From Sil.pdf:application/pdf},
}Downloads: 0
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