January 31, 2019
New method shows topological phases

Researchers in Germany and the U.S.A. propose a new optical method to verify topological magnon phases. Writing in PRL, the team shows that the intensity of polarized laser light scattered back from a magnetic material is an indicator of topological phases. more

<h3>Graphene can emit laser flashes</h3>

Individual layers of carbon atoms are suitable as active material for terahertz lasers, as they permit population inversion more

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