Watch: IISc Researchers Share Video Evidence Of Superconductivity At Ambient Temperature And PressureHigh Temperature Superconductor Levitating Above A Magnet (Representative Image) (Julian Litzel/Wikimedia Commons)

Days after posting a revised article in arXiv, a pre-print repository, researchers from Indian Institute of Science (IISc), Bengaluru, shared a video that shows clear evidence of superconductivity at ambient temperature and pressure, reports The Hindu.

In the video, nanoparticles made of gold-silver mixture (grey/black grains inside the tube) can be seen getting repelled and even levitating when brought close to a permanent magnet at different angles, showing strong diamagnetism, a property of the superconductors.

Diamagnetism is one of the important properties of a superconductor. “When a magnetic field is applied from outside, then the superconductor expels magnetic field and never allows magnetic field to go through it. This is used for levitation of a superconductor,” explained Arindam Ghosh, IISc Professor and co-author of the paper.

“We were able to achieve diamagnetism at ambient temperature and pressure,” he added.

“New video uploaded on diamagnetism at ambient conditions in the newly claimed superconductor. First evidence of magnetic levitation and Meissner effect at room temperature? More updates soon,” Professor Ghosh tweeted on 27 May.

Superconductivity at room temperature has been one of the most sought out problems in physics for almost a century. A material is termed as superconductor if the passage of electricity faces close to nil resistance. Such resistance is responsible for losses while transmission, practically limiting the distances to which electricity can be supplied from a source.

Earlier, Professor Anshu Pandey and team had claimed that their material exhibits major properties of superconductivity at ambient temperature and pressure. The material is in the form of nanosized films and pellets made of silver nanoparticles embedded in a gold matrix. Both metals do not exhibit superconductivity independently.

An Appeal...

Dear Reader,

As you are no doubt aware, Swarajya is a media product that is directly dependent on support from its readers in the form of subscriptions. We do not have the muscle and backing of a large media conglomerate nor are we playing for the large advertisement sweep-stake.

Our business model is you and your subscription. And in challenging times like these, we need your support now more than ever.

We deliver over 10 - 15 high quality articles with expert insights and views. From 7AM in the morning to 10PM late night we operate to ensure you, the reader, get to see what is just right.

Becoming a Patron or a subscriber for as little as Rs 1200/year is the best way you can support our efforts.

Become A Patron
Become A Subscriber