IISc team submits more evidence of superconductivity

In a new preprint posted in arXiv on June 5, the IISc team has provided evidence of signatures of critical current — the current at which the superconductor is no longer stable and becomes resistive. The critical current data is a strong indicator of superconductivity. Further evidence of possible superconductivity in gold-silver nanostructures has been … Continue reading IISc team submits more evidence of superconductivity

IISc team provides video evidence of superconductivity at room temperature

IISc researchers have posted a video evidence of diamagnetism causing magnetic levitation at ambient temperature and pressure. In the video, the nanoparticles made of gold-silver mixture seen inside a test tube can be seen getting repelled when brought close to a permanent magnet. On May 24, three days after posting a revised article in arXiv, … Continue reading IISc team provides video evidence of superconductivity at room temperature

Finally, IISc team confirms breakthrough in superconductivity at room temperature

The revised article posted in arXiv on May 21 by IISc researchers led by Prof. Anshu Pandey strengthens the claim of achieving superconductivity at ambient temperature and pressure. About the identical noise in measurements made under different conditions, the researchers say it suggests a possible physical origin related to the sample as opposed to instrument … Continue reading Finally, IISc team confirms breakthrough in superconductivity at room temperature

Podcast: IISc superconductivity claim faces another jolt

Satishchandra Ogale at IISER Pune explains that though the gold-silver thin films synthesised by his team is different from IISc's Au-Ag nanosized films and pellets and the microstructure is also not the same, no signature of superconductivity in either resistivity or magnetism measurements was seen. This is yet another jolt to IISc claims after MIT … Continue reading Podcast: IISc superconductivity claim faces another jolt

IISc superconductivity claim gets another jolt, IISER Pune finds no superconductivity in Au/Ag films

After Brian Skinner, a physicist at the Massachusetts Institute of Technology, raised a red flag after noticing nearly identical noise in two presumably independent measurements in IISc superconductivity study, IISER Pune now finds no superconductivity in gold-silver thin films. Though thin films synthesised by the IISER Pune team is different from IISc's nanosized films and … Continue reading IISc superconductivity claim gets another jolt, IISER Pune finds no superconductivity in Au/Ag films

IISc superconductivity saga: Impersonator almost succeeds in messing up

Even as many Indian scientists wish that the two-member IISc team proves the critics of superconductivity study wrong, a wily impersonator nearly succeeded in messing up. And as Skinner himself puts it, it's “way more drama” than anyone can ever “encounter in physics”. “I've seen a lot of people making comments to the effect that … Continue reading IISc superconductivity saga: Impersonator almost succeeds in messing up

MIT physicist raises a red flag on IISc superconductivity claim

Less than three weeks after Prof. Anshu Pandey and Dev Kumar Thapa from the Solid State and Structural Chemistry Unit at Indian Institute of Science (IISc) claimed to have achieved superconductivity at ambient temperature (below 236 K (-37 degree C)) and pressure, Dr. Brian Skinner, a physicist at the Massachusetts Institute of Technology, Boston has … Continue reading MIT physicist raises a red flag on IISc superconductivity claim

IISc researchers observe superconductivity at ambient temperature, pressure

IISc researchers have for the first time been able to achieve superconductivity at ambient temperature and pressure. The resistance observed is very low (10-4 ohms) but not zero. Though they didn’t observe perfect Meissner effect (where the magnetic fields are completely expelled by the superconducting state), they did observe samples becoming strongly diamagnetic, which is consistent with … Continue reading IISc researchers observe superconductivity at ambient temperature, pressure

TIFR’s landmark discovery challenges the theory of superconductivity

Researchers at the Tata Institute of Fundamental Research (TIFR), Mumbai have made a landmark discovery that challenges the conventional understanding of superconductivity. A team led by Dr. S. Ramakrishnan of the Department of Condensed Matter Physics and Material Sciences at TIFR has discovered bismuth semi-metal in bulk form becoming a superconductor when the temperature is … Continue reading TIFR’s landmark discovery challenges the theory of superconductivity