DEFECT CASCADES PRODUCED BY NEUTRON-IRRADIATION IN YBA2CU3O7-DELTA

被引:72
作者
FRISCHHERZ, MC
KIRK, MA
FARMER, J
GREENWOOD, LR
WEBER, HW
机构
[1] UNIV VIENNA, INST ATOM, A-1020 VIENNA, AUSTRIA
[2] ARGONNE NATL LAB, DIV MAT SCI, ARGONNE, IL 60439 USA
[3] UNIV MISSOURI, RES REACTOR, COLUMBIA, MO 65211 USA
[4] PACIFIC NW LAB, RICHLAND, WA 99352 USA
来源
PHYSICA C | 1994年 / 232卷 / 3-4期
关键词
D O I
10.1016/0921-4534(94)90790-0
中图分类号
O59 [应用物理学];
学科分类号
摘要
Defect cascades produced by fast neutron irradiation of YBa2Cu3O7-delta single crystals were studied by transmission electron microscopy. The visible defects were found to have sizes between 1 and 5 nm. Defect densities were obtained as a function of neutron fluence between 2 x 10(21) and 8 x 10(21) m-2 (E > 0.1 MeV) and compared to damage calculations. The measured defect density scales linearly with fluence and amounts to 1 x 10(22) m-3 at a neutron fluence of 2 x 10(21) m-2. The defect stability was studied at room temperature and through annealing to 400-degrees-C.
引用
收藏
页码:309 / 327
页数:19
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