TY - JOUR
T1 - Stair-step columnar defects in ion-irradiated Bi2Sr2CaCu2Ox crystals
AU - Huang, D. X.
AU - Sasaki, Y.
AU - Ikuhara, Y.
N1 - Funding Information:
We would like to thank Drs. Satoru Okayasu and Takeo Aruga in the Japan Atomic Energy Research Institute for their helpful discussion. This work is partially supported by the New Energy and Industrial Technology Development Organization (NEDO) through the International Superconductivity Technology Center (ISTEC).
PY - 2000
Y1 - 2000
N2 - Bi2Sr2CaCu2Ox single crystals irradiated by 75 MeV B and 230-MeV Au ions were investigated using transmission electron microscopy. Apart from columnar and cascade defects, another type of defect with stair-step morphology was observed in all the samples irradiated under the two different irradiation conditions. Such defects usually exist in the area, where the density of the ion energy deposited is lower than that required for producing cascade defects. The analyses of the defect microstructure and the location of the defect in the target material indicate that this kind of defects is neither simple cracks nor ordinary irradiation-induced defects. The mechanism for the formation of this kind of stair-step defect is qualitatively discussed.
AB - Bi2Sr2CaCu2Ox single crystals irradiated by 75 MeV B and 230-MeV Au ions were investigated using transmission electron microscopy. Apart from columnar and cascade defects, another type of defect with stair-step morphology was observed in all the samples irradiated under the two different irradiation conditions. Such defects usually exist in the area, where the density of the ion energy deposited is lower than that required for producing cascade defects. The analyses of the defect microstructure and the location of the defect in the target material indicate that this kind of defects is neither simple cracks nor ordinary irradiation-induced defects. The mechanism for the formation of this kind of stair-step defect is qualitatively discussed.
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U2 - 10.1016/S0921-4534(00)00362-2
DO - 10.1016/S0921-4534(00)00362-2
M3 - Article
AN - SCOPUS:0034321075
VL - 339
SP - 281
EP - 286
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 4
ER -