INVESTIGADORES
SERQUIS Adriana Cristina
artículos
Título:
Structural and Superconducting Property Variations with Nominal Mg Non-Stoichiometry in MgxB2 and Its Enhancement of Upper Critical Field
Autor/es:
CHEN, S. K.; A. SERQUIS; SERRANO, G.; YATES, K. A.; BLAMIRE, M. G.; GUTHRIE, D.; COOPER, J.; WANG, H.; MARGADONNA, S.; MACMANUS-DRISCOLL, J. L.
Revista:
ADVANCED FUNCTIONAL MATERIALS
Editorial:
WILEY-VCH Verlag GmbH & Co
Referencias:
Año: 2008 vol. 18 p. 120 - 120
ISSN:
1616-301X
Resumen:
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.