Neutron irradiation of SmFeAsO1-xFx

被引：23

作者：

Eisterer, M. ^{[1
]}

Weber, H. W. ^{[1
]}

Jiang, J. ^{[2
]}

Weiss, J. D. ^{[2
]}

Yamamoto, A. ^{[2
]}

Polyanskii, A. A. ^{[2
]}

Hellstrom, E. E. ^{[2
]}

Larbalestier, D. C. ^{[2
]}

机构：

[1] Vienna Univ Technol, Osterreich Univ, Atominst, A-1020 Vienna, Austria

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2009年 / 22卷 / 06期

关键词：

HIGH-TEMPERATURE SUPERCONDUCTORS; LAYERED QUATERNARY COMPOUND; CRITICAL-CURRENT DENSITIES; SINGLE-CRYSTALS; MAGNETIC-PROPERTIES; CRITICAL-CURRENTS; MGB2; YBA2CU3O7-DELTA; SCATTERING; DEFECTS;

D O I：

10.1088/0953-2048/22/6/065015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

SmFeAsO1-xFx was irradiated in a fission reactor by a fast (E > 0.1 MeV) neutron fluence of 4 x 10(21) m(-2). The introduced defects increased the normal state resistivity due to a reduction in the mean free path of the charge carriers. This leads to an enhancement of the upper critical field at low temperatures. The critical current density within the grains, J(c), increases upon irradiation. The second maximum in the field dependence of J(c) disappears and the critical current density becomes a monotonically decreasing function of the applied magnetic field.

引用

页数：5

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