TY - JOUR
T1 - Effect of anisotropic temperature factors on convergent-beam electron diffraction intensities and measurement of the local change in the oxygen concentration of YBa2Cu3Oy
AU - Tomokiyo, Y.
AU - Tanaka, Y.
AU - Koga, D.
AU - Akase, Z.
N1 - Funding Information:
Most of the results presented here were obtained with facilities at the High-Voltage Electron Microscopy Laboratory, Kyushu University. This work was partly supported by grant-in-aid (B)11450240 for scientific research from the Japan Society for the Promotion of Science, and by the Proposed-Based New Industry Creative Technology Research and Development Promotion Program, No. 98S03-009-2.
PY - 2004/9/1
Y1 - 2004/9/1
N2 - The local oxygen concentration of the high-Tc superconductor YBa2Cu3Oy, was measured from large-angle convergent-beam electron diffraction patterns using a transmission electron microscope equipped with a field emission gun with an in-column-type energy filter. The anisotropic effect of thermal vibrations of atoms was considered in the analysis of the oxygen concentration, based on the many-beam dynamic theory. The observed fluctuation in the oxygen concentration can explain the peak effect in the Jc-H curve, the critical current density Jc plotted as a function of applied magnetic field H.
AB - The local oxygen concentration of the high-Tc superconductor YBa2Cu3Oy, was measured from large-angle convergent-beam electron diffraction patterns using a transmission electron microscope equipped with a field emission gun with an in-column-type energy filter. The anisotropic effect of thermal vibrations of atoms was considered in the analysis of the oxygen concentration, based on the many-beam dynamic theory. The observed fluctuation in the oxygen concentration can explain the peak effect in the Jc-H curve, the critical current density Jc plotted as a function of applied magnetic field H.
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U2 - 10.1080/14786430410001671511
DO - 10.1080/14786430410001671511
M3 - Article
AN - SCOPUS:4444333011
SN - 1478-6435
VL - 84
SP - 2809
EP - 2818
JO - Philosophical Magazine
JF - Philosophical Magazine
IS - 25-26
ER -