3 ms·
I think it is the same, if (and correct me if I'm wrong here) this is the first time we've observed room temperature superconductivity of any kind? It would me
by ZoFreX 14y ago
I think it is the same, if (and correct me if I'm wrong here) this is the first time we've observed room temperature superconductivity of any kind?
It would mean that a hypothesized phenomenon has been confirmed as possible, and more importantly would mean we could start to understand the conditions under which it occurs and see if we can apply that to anything on a slightly larger scale.
- jcfrei 14y agoThe overall results indicate that room temperature superconductivity appears to be reachable The paper goes into more detail: The observed magnetic characteristics as a function of temperature, magnetic field and time, provide evidence for weakly coupled grains through Josephson interaction, revealing the existence of superconducting vortices. [0] My layman interpretation is that they've observed a property of superconduction, however their graphite flakes didn't demonstrate any actual superconductivity. [0] http://arxiv.org/ftp/arxiv/papers/1209/1209.1938.pdf http://arxiv.org/ftp/arxiv/papers/1209/1209.1938.pdf
- jpdoctor 14y ago1. Thanks for the arxiv link, (OP: it belongs at the top) 2. Magnetic characteristics of perfect diamagnetism are indeed "actual superconductivity." If there were some residual resistance, the magnetic field would not be completely expelled from that part of the material. Wikipedia's entry serves as a nice intro to diamagnetism, which is the underlying principle for the measurement. http://en.wikipedia.org/wiki/Diamagnetism http://en.wikipedia.org/wiki/Diamagnetism
- jcfrei 14y agothanks for clearing that up for me!
- vannevar 14y agoRoom temperature superconductivity has been claimed several times, but never corroborated as fas I know. And neither has this claim, yet.