Measurement of oxygen disorder and nano-twin microstructure associated with columnar defects in YBCO.

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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.

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9 p.

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Yan, Y, December 18, 1998.

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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.

Physical Description

9 p.

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INIS; OSTI as DE00011026

Medium: P; Size: 9 pages

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  • Materials Research Society 1998 Fall Meeting, Boston, MA (US), 11/30/1998--12/04/1998

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  • Report No.: ANL/MSD/CP-96876
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 11026
  • Archival Resource Key: ark:/67531/metadc618929

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  • December 18, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 7:38 p.m.

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Yan, Y,. Measurement of oxygen disorder and nano-twin microstructure associated with columnar defects in YBCO., article, December 18, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc618929/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.