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  A diffusion phenomenon in Y-Ba-Cu-O superconductors

Melmed, A. J., Camus, P. P., Ernst, N., Schmidt, W., Bozdech, G., & Naschitzki, M. (1991). A diffusion phenomenon in Y-Ba-Cu-O superconductors. Surface Science, 246(1-3), 173-176. doi:10.1016/0039-6028(91)90410-T.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-F0C4-A Version Permalink: https://hdl.handle.net/21.11116/0000-000A-0018-B
Genre: Journal Article

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 Creators:
Melmed, A. J.1, Author
Camus, P. P.2, Author
Ernst, Norbert3, Author           
Schmidt, W.A.3, Author           
Bozdech, Georg3, Author           
Naschitzki, Matthias3, Author           
Affiliations:
1Custom Probes Unlimited, P.O. Box 3938, Gaithersburg, MD 20878, USA, ou_persistent22              
2National Institute of Standards and Technology, Gaithersburg, MD 20899, USA, ou_persistent22              
3Fritz Haber Institute, Max Planck Society, ou_24021              

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 Abstract: The influence of a negative electric field on the near-surface composition of Y-Ba-Cu-O superconductors, which have initially lost oxygen due to exposure to vacuum and FIM imaging, is investigated using a wide-angle atom probe. Field electron emission of about 10−8 A for about 10 min, at 85 K, causes significant changes in composition which are interpreted to mean primarily that oxygen has diffused to the surface and desorbed, resulting in a more metallic surface. These changes are correlated with recently observed shifts in field ion- and field-electron energy spectra.

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Language(s): eng - English
 Dates: 1990-07-301990-08-271991-04-03
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/0039-6028(91)90410-T
 Degree: -

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Title: Surface Science
  Abbreviation : Surf. Sci.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: 4 Volume / Issue: 246 (1-3) Sequence Number: - Start / End Page: 173 - 176 Identifier: ISSN: 0039-6028
CoNE: https://pure.mpg.de/cone/journals/resource/0039-6028