TY - JOUR
T1 - Effects of particle irradiations on vortex states in iron-based superconductors
AU - Tamegai, Tsuyoshi
AU - Taen, Toshihiro
AU - Yagyuda, Hidenori
AU - Tsuchiya, Yuji
AU - Mohan, Shyam
AU - Taniguchi, Tomotaka
AU - Nakajima, Yasuyuki
AU - Okayasu, Satoru
AU - Sasase, Masato
AU - Kitamura, Hisashi
AU - Murakami, Takeshi
AU - Kambara, Tadashi
AU - Kanai, Yasuyuki
PY - 2012/8
Y1 - 2012/8
N2 - Various kinds of energetic particles are irradiated into iron-based superconductors, and their effects on the critical current density (J c) and vortex dynamics have been systematically studied. It is found that J c is enhanced and vortex dynamics is strongly suppressed by energetic particles having a sufficient energy deposition rate, similar to the case of high temperature cuprate superconductors. The enhancement of J c, in general, persists up to much higher irradiation doses than in cuprates. However, details of the effect of irradiation depend on the kind of ion species and their energies. Even with the same ions and energies, the effect is not universal for different kinds of iron-based superconductors. The correlated nature of defects created by heavy-ion irradiation is confirmed by the angular dependence of irreversible magnetization.
AB - Various kinds of energetic particles are irradiated into iron-based superconductors, and their effects on the critical current density (J c) and vortex dynamics have been systematically studied. It is found that J c is enhanced and vortex dynamics is strongly suppressed by energetic particles having a sufficient energy deposition rate, similar to the case of high temperature cuprate superconductors. The enhancement of J c, in general, persists up to much higher irradiation doses than in cuprates. However, details of the effect of irradiation depend on the kind of ion species and their energies. Even with the same ions and energies, the effect is not universal for different kinds of iron-based superconductors. The correlated nature of defects created by heavy-ion irradiation is confirmed by the angular dependence of irreversible magnetization.
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U2 - 10.1088/0953-2048/25/8/084008
DO - 10.1088/0953-2048/25/8/084008
M3 - Article
AN - SCOPUS:84863926410
SN - 0953-2048
VL - 25
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
IS - 8
M1 - 084008
ER -