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Joe Eck's Superconductors.org is reporting the discovery of the 25th and 26th high-temperature superconductors. Sn9SbTe4Ba2MnCu15O30+ displays a critical transition temperature (Tc) near 136°C (276°F) and Sn10SbTe4Ba2MnCu16O32+ transitions near 141°C (285°F).
To grasp how exceptionally high these temperatures are, consider that 141 Celsius is warmer than the melting points of more than 45 different solder alloys.
These two new formulations resulted from expanding the unit cell of the 129C superconductor announced in March 2015. One extra Sn-Cu-O2 layer was added to reach 136C and two extra Sn-Cu-O2 layers were added to reach 141C.
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"Hot" New Superconductors Discovered
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Ten years of rejection slips is nature's way of telling you to stop writing.
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(Score: 2) by Nerdfest on Wednesday June 10 2015, @03:56AM
Where have I been? I was under the impression that we were still limited to superconductors at temps *way* below zero.
(Score: 1) by _1156277 on Wednesday June 10 2015, @04:11AM
According to TFA we have our heads buried in the sand.
(Score: 0) by Anonymous Coward on Wednesday June 10 2015, @05:23AM
"Whereas "ordinary" or metallic superconductors usually have transition temperatures (temperatures below which they superconduct) below 30 K (−243.2 °C), HTS have been observed with transition temperatures as high as 138 K (−135 °C)." - Wikipedia
Without RTFA i assume they mix up Kelvin and Centigrade
(Score: 0) by Anonymous Coward on Wednesday June 10 2015, @05:31PM
I haven't RTFA yet either, but the last link goes to the URL http://www.superconductors.org/400K_SC.htm [superconductors.org] — which looks very much as if it means "400 Kelvin superconductor". 400K is 127°C, which is indeed quite close to the 129°C mentioned in the link text.
(Score: 2) by davester666 on Wednesday June 10 2015, @05:42AM
Have to leave the basement every couple of years....
(Score: 4, Insightful) by Anonymous Coward on Wednesday June 10 2015, @06:32AM
One of the most highly populated niches for our best thinkers in physics is in superconductivity. If these "hot" superconductors were real, these people would be publishing about it in academic journals.
This guy is a talented maverick, an electronics engineer. Working alone, mavericks can sometimes be right and the world wrong, but 99/100 it's the other way around. I admire the passion, but unfortunately it's not solid science. Sites like Soylent that give these guys attention are what keeps them going, I think kindly, but to the detriment of science and to the gentleman himself. If soylent thinks it's smarter than all the most talented physicists who aren't buying into this, then yeah, go ahead and publish this. Otherwise, it's probably best to stick to mainstream science news from solid journals. There's still plenty to blow your mind in the real world.
On a semi-unrelated note, I sometimes like Wired, but they've been publishing jack articles that are like, hey, I can predict horse races, because science! And then changing headlines and not admitting the retraction: http://www.wired.com/2015/06/science-says-american-pharoah-wont-win-triple-crown/ [wired.com] . The original headline was something like, Science says American Pharoah won't win triple crown, and the new headline says American Pharoah Beats Science! As if. This is usurpation-of-science and post-race-coverup journalism.
For superconductivity, here's a nice primer: http://www.nature.com/news/2011/110720/full/475280a.html [nature.com]
As an example of news that Soylent might be interested in, related to physics and computing, try this:
http://www.nature.com/nphys/journal/v11/n6/full/nphys3367.html [nature.com]
--Fock
(Score: 2, Touché) by Anonymous Coward on Wednesday June 10 2015, @06:37AM
As an example of news that Soylent might be interested in, related to physics and computing, try this:
http://www.nature.com/nphys/journal/v11/n6/full/nphys3367.html [nature.com]
This is the page you are looking for: https://soylentnews.org/submit.pl [soylentnews.org]
(Score: 4, Informative) by FatPhil on Wednesday June 10 2015, @07:53AM
http://www.superconductors.org/History.htm
Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves