Le Aug 23, 2012 à 10:16 PM, Axil Axil <janap...@gmail.com> a écrit : > http://cdn.intechweb.org/pdfs/17002.pdf > > The above paper attempts to prove that carbon nanotubes are superconductive > at very high temperatures by imbedding nickel nanoparticles in the outside > wall of a multi walled nanotube and detecting magnetic changes produced by > superconductivity. > The paper mentioned possible critical temperatures of 1000 K or more. One thing I did not understand was why they were looking for the diamagnetic Meissner effect at high temperatures as evidence of superconductivity. I think there is instead a paramagnetic Meissner effect at work in so-called high temperature superconductors, unless the diamagnetic Meissner effect is understood to be seen once more at even higher temperatures. I also thought the Cooper pair phonon resonance (BCS) mechanism only applied to low-temperature superconductors.
Eric
