Oak Ridge National Lab provides a partial confirmation of one of Joe Ecks Room Temperature Superconductors

In December of 2011 Superconductors.ORG announced the discovery of the first true room-temperature superconductor - a senary oxycuprate with transition temperature near 28.5 Celsius. Shortly after that Dr. Thom Mason, Director of Oak Ridge National Laboratory, viewed the data graphs of this discovery online and called them "tantalizing hints" of room-temperature superconductivity. Now O.R.N.L. SQUID tests have confirmed a diamagnetic transition is occuring at 28.5C.

Samples of the compound (Tl5Pb2)Ba2Mg2Cu9O17+ were delivered to Oak Ridge Labs on December 18, 2013, and tests were performed using a commercial SQUID magnetometer. Magnetization tests ranged from 250K to 350K with two different test criteria. Magnetic susceptibility was first measured with an applied magnetic field of 20 Gauss (red dots). This produced considerable scattering of the data points. Then another test was done with a higher applied magnetic field of 1 Tesla (blue dots). This produced a nearly straight line with much less scatter (see plot upper left). Readings were taken every 0.5K and the bulk material characterized as a "weak paramagnet" overall. However within the blue line representing the 1 Tesla data points was a visible negative shift near 302K, indicating a small diamagnetic component at 28.5 Celsius.


This diamagnetic shift, representing the Meissner transition, was not noticed the day of the tests, due to its small amplitude within a row of large dots. However, when the plot was later loaded into a graphics program and a thin line drawn down the middle of the dots, it became apparant (see above)

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