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Structural and Superconducting Property Variations with Nominal Mg Non-Stoichiometry in MgxB2 and Its Enhancement of Upper Critical Field


Citation

Chen, Soo Kien and Serquis, Adriana and German, Serrano and Yates, Karen A. and Blamire, Mark G. and Guthrie, Douglas and Cooper, John and Wang, Haiyan and Margadonna, Serena and MacManus Driscoll, Judith L. (2008) Structural and Superconducting Property Variations with Nominal Mg Non-Stoichiometry in MgxB2 and Its Enhancement of Upper Critical Field. Advanced Functional Materials, 18 (1). pp. 113-120. ISSN 1616-301X

Abstract / Synopsis

By applying a combination of characterisation tools, changes in structural and superconducting properties with nominal Mg non-stoichiometry in MgxB2 are found. The non-stoichiometry produces enhanced in-field critical current densities (Jc’s) and upper critical field / irreversibility field (Hc2/Hirr(T)) values. Upper critical fields of ∼ 21 T (4.2 K) were obtained in nominal Mg-deficient samples compared to ∼ 17 T (4.2 K) for near-stoichiometric samples.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: 10.1002/adfm.200700254
Publisher: Wiley Blackwell
Depositing User: Najwani Amir Sariffudin
Date Deposited: 31 May 2010 16:01
Last Modified: 24 Nov 2015 12:18
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/adfm.200700254
URI: http://psasir.upm.edu.my/id/eprint/7006
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