Measurement of oxygen disorder and nano-twin microstructure associated with columnar defects in YBCO.
Conference
·
OSTI ID:11026
Studies of defects generated by high energy (>1 GeV) heavy ion irradiation in high-Tc superconductors have been performed by transmission electron microscopy (TEM). Our study shows that high dose irradiation leads to the formation of nano-twins, by which the columnar defects are connected. An analysis of the local Fourier components of the image intensity in [001] lattice images indicates that these new ''twin'' boundaries are much more diffuse than pre-existing twin boundaries in YBCO. The mechanism of the formation of nano-twin boundaries on {l_brace}110{r_brace} planes and their possible relation to superconducting properties are discussed.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 11026
- Report Number(s):
- ANL/MSD/CP-96876; TRN: US0103979
- Resource Relation:
- Conference: Materials Research Society 1998 Fall Meeting, Boston, MA (US), 11/30/1998--12/04/1998; Other Information: PBD: 18 Dec 1998
- Country of Publication:
- United States
- Language:
- English
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