For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction.
The quasiparticle, called a semi-Dirac fermion, was first theorized 16 years ago, but was only recently spotted inside a crystal of semi-metal material called ZrSiS.
The observation of the quasiparticle opens the door to future advances in a range of emerging technologies from batteries to sensors, according to the researchers. READ MORE...
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