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ST9 - Essential Characterisation Tools for the Study of MgB2 Superconductors

Essential Characterisation Tools for the Study of MgB2 Superconductors

Karen A.Yates(1), Yasuyuki Miyoshi(1), James Moore(1), Garry Perkins(1),
David Caplin(1), Lesley Cohen and Y. Bugoslavsky(2)

(1) The Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2BZ, England
(2) Cryogenic Limited, The Vale, Acton, London W3 7QE, England

Abstract - We have developed a suite of characterisation tools that have proved invaluable in the ongoing studies of the physical properties of MgB2 superconductors. Here we highlight the use of combining the measurement of Hc2(T) by global magnetometry with measurement of point contact diffusivity, ac calorimetry and Hall probe imaging.

Manuscript received Sept.  26, 2007,  accepted October 23, 2007.  Reference No. ST9., Category 2