SNF Issue No. 47, November 2019

In this Issue:
INTERNATIONAL CONFERENCE ON MAGNET TECHNOLOGY (MT26): Selected Plenary and Invited Presentations
INTERNATIONAL SUPERCONDUCTING ELECTRONICS CONFERENCE (ISEC 2019): Selected Plenary, Invited, and Additional Presentations

A Tribute to Archie Campbell

Archie Campbell PA46

January 11, 2020 (PA46).  Archie was a Cambridge ‘lifer’. As we’ve heard, he came up to Cambridge in October 1959 and stayed. After graduating in Natural Sciences in 1962, Archie joined Jan Evetts and Anant Narlikar in David Dew-Hughes’ group in Materials Science and Metallurgy. Archie and Jan were to become life-long friends and colleagues and to make a joint contribution to the field of superconductivity that was to be internationally acclaimed and never surpassed. Both Archie and Jan were towering intellects in their own right, so together they were, quite simply, unstoppable.

On completion of their PhDs, Archie and Jan were on temporary contracts in Materials Science and Metallurgy until Jan was awarded a Lectureship in the Department. Archie was a Royal Society Fellow for a while, during which period the classic Campbell and Evetts monograph on Critical Currents in Superconductors was written. This extraordinary work, which was even translated into Russian, is considered to be the bible of applied superconductivity and has guided literally thousands of researchers, both young and old, in the subject now for almost 50 years.

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A Career in Superconductivity- Harold Weinstock

Harold Weinstock PA45

November 19, 2019 (PA45). Recently I retired after about 60 years as a research scientist and as a scientific program officer at the (US) Air Force Office of Scientific Research (AFOSR), devoting my activities for the most part to the field of superconductivity.  What follows is a personal history of my scientific career with emphasis on superconductivity, plus some observations I’ve made on progress in uncovering new superconducting materials and in finding new applications for them. Finally, I’ll try to provide some comments on the future of superconductivity and its applications.

In the Beginning
My early training as a graduate student at Cornell University, starting in September 1956, could be described as primarily in low temperature physics. I had the good fortune of being a research assistant for my entire time as a grad student there. At that time superconductivity was considered as an exotic phenomenon with considerable potential, but with little practical application thus far. My only direct connection to superconductivity during that period was use of a superconducting heat switch between a helium-3 refrigerator and a paramagnetic salt in achieving an operating temperature a little below 50 mK.

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