Sentences with phrase «tantalum arsenide»

They obtained the tantalum arsenide crystals from graduate student Shan Jiang and assistant professor Ni Ni at the University of California - Los Angeles.

Electrons moving through a crystal usually scatter when they hit an impurity, which slows their progress, but the topological effects in Hasan's tantalum arsenide crystals allow electrons to travel unimpeded.

But Hasan calculated that topological effects inside crystals of tantalum arsenide should create massless quasiparticles that act like Weyl fermions.