A new superconductor breaks rules physicists thought were fixed

Scientists discovered that platinum-bismuth-two (PtBi2) exhibits unprecedented superconducting behavior where only its top and bottom surfaces conduct electricity without resistance while the interior remains normal metal. Unlike all known superconductors, electrons in PtBi2 pair in a unique six-fold symmetric pattern, refusing to pair in six specific directions, which naturally creates Majorana particles along crystal edges that could serve as building blocks for error-resistant quantum computers.