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NanoSIMS analysis of Ca doping at a grain boundary in a superconducting YBCO Ca-123/123 bicrystal

Abstract:

Calcium doping is well known to increase the grain boundary critical current, Jcgb, in polycrystalline Y1Ba 2Cu3O7-δ, (YBCO). High resolution Secondary Ion Mass Spectroscopy (nanoSIMS) analysis has been used to map the distribution of Ca+ ions in three dimensions in an YBCO grain boundary grown on a 24° SrTiO3 bicrystal. High resolution SIMS imaging has produced Ca, Sr, and Ti elemental maps at 20 nm intervals from the YBCO surface. From the variation of Ca concentration with depth a Ca grain...

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Publication status:
Published

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Publisher copy:
10.1088/1742-6596/43/1/068

Authors


Kilburn, MR More by this author
Hammerl, G More by this author
Schneider, C More by this author
Mannhart, J More by this author
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Volume:
43
Issue:
1
Pages:
272-276
Publication date:
2006
DOI:
EISSN:
1742-6596
ISSN:
1742-6588
URN:
uuid:0568f14a-9ce0-4f25-a170-68b7ac311b8b
Source identifiers:
58685
Local pid:
pubs:58685

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