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Vortex pinning in high-Tc materials via randomly oriented columnar defects, created by GeV proton-induced fission fragments

机译：通过随机取向的柱状体在高Tc材料中涡旋钉扎由GeV质子诱导的裂变碎片产生的缺陷

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Extensive work has shown that irradiation with 0.8 GeV protons can producerandomly oriented columnar defects (CD's) in a large number of HTS materials,specifically those cuprates containing Hg, Tl, Pb, Bi, and similar heavyelements. Absorbing the incident proton causes the nucleus of these species tofission, and the recoiling fission fragments create amorphous tracks, i.e.,CD's. The superconductive transition temperature Tc decreases linearly withproton fluence and we analyze how the rate depends on the family ofsuperconductors. In a study of Tl-2212 materials, adding defects decreases theequilibrium magnetization Meq(H) significantly in magnitude and changes itsfield dependence; this result is modeled in terms of vortex pinning. Analysisof the irreversible magnetization and its time dependence shows markedincreases in the persistent current density and effective pinning energy, andleads to an estimate for the elementary attempt time for vortex hopping, tau ~4x10^(-9) s.

机译：大量的研究表明，用0.8 GeV质子辐照可以在大量的HTS材料中，特别是那些含有Hg，Tl，Pb，Bi和类似重金属的铜酸盐中，产生定向取向的柱状缺陷（CD's）。吸收入射的质子会引起这些物质的核裂变，而反冲裂变碎片会形成无定形径迹，即CD。超导转变温度Tc随着质子注量线性下降，我们分析了速率如何取决于超导体族。在对Tl-2212材料的研究中，添加缺陷会显着降低平衡磁化强度Meq（H）并改变其场依赖性。此结果是根据涡流钉扎建模的。对不可逆磁化强度及其时间依赖性的分析表明，持续电流密度和有效钉扎能量显着增加，并导致对涡旋跳跃的基本尝试时间tau〜4x10 ^（-9）s的估计。

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Thompson, J. R.; Ossandon, J. G.; Krusin-Elbaum, L.; Kim, H. J.; Song, K. J.; Christen, D. K.; Ullmann, J. L.;
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1. Vortex dynamics in high-Tc superconductors with sparse weak columnar defects [J] . Fei Qi, Huan Liu, Qing-Hu Chen The European Physical Journal B . 2013,第7期

机译：具有稀疏弱柱状缺陷的高Tc超导体的涡旋动力学
2. Vortex dynamics in high-Tc superconductors with sparse weak columnar defects [J] . Fei Qi, Huan Liu, Qing-Hu Chen The European physical journal, B. Condensed matter physics . 2013,第7期

机译：具有稀疏弱柱状缺陷的高Tc超导体的涡旋动力学
3. MEASUREMENT OF FISSION FRAGMENT ANISOTROPIES FOR PROTON-INDUCED FISSION OF TWO PRE-ACTINIDE NUCLEI AT SEVERAL ENERGIES [J] . S. SOHEYLI, H. NOSHAD, M. LAMEHI-RACHTI International Journal of Modern Physics, A. Particles and Fields, Gravitation, Cosmology . 2007,第5期

机译：质子诱导的两种PRE系原子核在多个能量下的裂变碎片各向异性测量
4. Vortex Pinning and Critical Current Enhancements in High-T_c Supercoductors with Fission-Generated Random Columnar Defects [C] . J. R. Thompson, J. G. Ossandon, L. Krusin-Elbaum, Polish-US conference on new developments in high temperature superconductivity . 2000

机译：具有裂变的随机柱状缺陷的高T_C超导体中的涡旋固定和临界电流增强
5. THE DISSOLUTION KINETICS OF TECHNETIUM-CONTAINING GLASS AND SPINEL AND OF FISSION FRAGMENT-DAMAGED ACTINIDE HOST PHASES. [D] . KHALIL, M. YASSER. 1984

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8. Vortex line pinning in Bi2Sr2CaCu2O8 single crystals with columnar defects [R] . van der Beek, CJ, Vinokur, V M, Crabtree, G W, 1994

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Vortex pinning in high-Tc materials via randomly oriented columnar defects, created by GeV proton-induced fission fragments

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