TY - JOUR
T1 - Influence of antiphase boundaries on critical current densities in YBa2Cu3O7-y single crystals
AU - Shibata, Junko
AU - Oka, Akihiro
AU - Izumi, Teruo
AU - Shiohara, Yuh
AU - Hirayama, Tsukasa
AU - Ikuhara, Yuichi
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2001/7
Y1 - 2001/7
N2 - Twinned and detwinned YBa2Cu3O7-y (Y123) single crystals were observed by transmission electron microscopy to investigate the influences of the lattice defects on the peak effect for Y123 single crystals. Twin boundaries with the spacing of 0.2-0.5 μm were seen only in the twinned Y123 single crystals. Antiphase boundaries (APBs) along the (110)Y123 plane were observed in both twinned and 0.5 h-detwinned samples, which showed the peak effect in high magnetic field over 3 T at 70 K. In contrast, APBs were not found in 100 h-detwinned sample. Critical current densities of this sample were small all over the range of the applied magnetic field. In conclusion, we suggest that APBs have a significant influence on the peak effect of Y123 single crystals in the high magnetic field.
AB - Twinned and detwinned YBa2Cu3O7-y (Y123) single crystals were observed by transmission electron microscopy to investigate the influences of the lattice defects on the peak effect for Y123 single crystals. Twin boundaries with the spacing of 0.2-0.5 μm were seen only in the twinned Y123 single crystals. Antiphase boundaries (APBs) along the (110)Y123 plane were observed in both twinned and 0.5 h-detwinned samples, which showed the peak effect in high magnetic field over 3 T at 70 K. In contrast, APBs were not found in 100 h-detwinned sample. Critical current densities of this sample were small all over the range of the applied magnetic field. In conclusion, we suggest that APBs have a significant influence on the peak effect of Y123 single crystals in the high magnetic field.
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U2 - 10.1557/JMR.2001.0265
DO - 10.1557/JMR.2001.0265
M3 - Article
AN - SCOPUS:0035410831
VL - 16
SP - 1935
EP - 1941
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 7
ER -