Born-Oppenheimer approximation

A 99.99% pure bismuth crystal. The metal has been found to become a superconductor at a higher temperature than thought. Credit: maticulous/Flickr, CC BY 2.0

Indian Finding Poses New Challenge to Nobel-Winning Theory About Superconductors

Vasudevan Mukunth 02/12/2016

New experiment at TIFR in Mumbai disproves a prediction...