Here is the video clip on superconducting maglev trains we talked about in class.
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Thank you for the video, it is very interesting!
-Vinnie
DFT takes into account electron interaction in short range. DFT can not predict superconductivity because of copper pair interaction between very far electrons which is not taken into account.
Very interesting work Vincent!
It took me quite some time to understand all the principles and I had to go back in forth in the literature several times ; )
This Δ gap appearing in fig.2, is it a function of temperature too and thus at some extremely low T does the gap vanish?
Thanks,
Maria
Maria,
I do not think that the gap will totally vanish as its existence is in-part due to the lower energy of the Cooper pairs compared to unpaired electrons, and the Cooper pairs are present at extremely low temperatures.
-Vinnie
Hi Vincent,
In the video of the train, have you know if this method is more efficient than the traditional train systems??
Thanks,
Abdiel Rivera
Yes it is more efficient. By levitating the train it is able to travel without friction (except for wind resistance). This allows the trains to travel at much greater speeds. There are already some in existence, one of which is the MagLev train in Japan.
-Vin
Dear Vincent, would you talk about the actual critical temperature of superconductor materials? Is there any progress in finding high critical temperature superconductors? I think this is very important for the commercialize of superconductor. Thanks!
By the way, good page!
/forum/t-138894/superconductors#post-
