100 years of superconductivity by Horst Rogalla, Peter H. Kes

By Horst Rogalla, Peter H. Kes

Even 100 years after its discovery, superconductivity maintains to convey us new surprises, from superconducting magnets utilized in MRI to quantum detectors in electronics. 100 Years of Superconductivity provides a finished choice of themes on approximately the entire subdisciplines of superconductivity. Tracing the old advancements in superconductivity, the publication contains contributions from many pioneers who're answerable for vital steps ahead within the field.

The textual content first discusses fascinating tales of the invention and slow development of concept and experimentation. Emphasizing key advancements within the early Nineteen Fifties and Sixties, the booklet seems at how superconductivity began to permeate society and the way such a lot of today’s functions are in line with the options of these years. It additionally explores the real revolution that happened with the invention of extreme temperature superconductors, resulting in rising purposes in energy garage and fusion reactors.

Superconductivity has turn into an enormous box and this full-color e-book indicates how a ways it has are available in the earlier a hundred years. besides reviewing major study and experiments, major scientists proportion their perception and reports operating during this intriguing and evolving area.

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Assisted by Ochsenfeld he wanted to detect the changes in the magnetic field strength between two parallel, cylindrical su37 38 F. London, Superfluids, vol. I, Dover, New York (1961) §2; 1 st edition, John Wiley, New York (1950) W. Meissner, R. Ochsenfeld, Naturwissenschaften 21 (1933) 787 100 Years of Superconductivity 19 perconductors as they passed the transition to the superconducting state. In fact, Max von Laue, who was consultant at the PTR, had proposed to do the experiments and also assisted by calculating the expected field distribution outside the cylinders.

13 (1911) 1274, Comm. 120b (Apr. 1911) H. Kamerlingh Onnes, Proc. 14 (1911) 113, Comm. 122b (May 1911) 100 Years of Superconductivity 3 reason that researchers exploring the archives were disappointed and, until now, did not look more closely at the notes. Had they made the effort, they would have found the excitement over the first successful transfer of liquid helium to a separate cryostat, the exact dates of the first resistivity experiments on a superconducting material, who was involved, and what their roles were.

Would the scattering amplitude decrease fast enough with falling temperature to yield zero resistance at zero temperature? Or would the mobility of the electrons also diminish at lower temperature, thus resulting in zero conductivity at absolute zero? If nature would follow the latter prescription — put forward by Lord Kelvin in 19029 — the resistance of a pure metal would first fall with decreasing temperature, go through a minimum, and finally go up to infinity at absolute zero. In the earliest investigations at liquid hydrogen temperatures in Leiden, Kamerlingh Onnes and his assistant Jacob Clay studied the resistance R versus temperature T in very thin gold and platinum wires10 .

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