| Autor: |
Fukushima, Takayuki, Horii, Shigeru, Ogino, Hiraku, Uchikoshi, Tetsuo, Suzuki, Tohru S., Sakka, Yoshio, Ishihara, Atsushi, Shimoyama, Jun-ichi, Kishio, Kohji |
| Zdroj: |
Applied Physics Express (APEX); November 2008, Vol. 1 Issue: 11 p111701-111701, 1p |
| Abstrakt: |
Tri-axial orientation of orthorhombic and twin-free Y2Ba4Cu7Oy(Y247) powders was attempted using a rotating magnetic field with modulated rate. Although magnetic anisotropy of paramagnetic Y247 originated only from the two-dimensional CuO2and one-dimensional Cu-O chain structures are small, strong tri-axial grain orientation with misorientation angles below 1.5° was successfully achieved during the solidification process of epoxy resin. Our present results indicate the possibility of fabrication of tri- or bi-axial grain-oriented bulk and thick films without applying epitaxial methods, such as melt-solidification or thin film deposition, and that the modulated-rotation magnetic field is applicable not only to RE247 compounds but also to orthorhombic high critical temperature cuprate superconductors, including practical REBa2Cu3Oy, in principle. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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