New topological behavior of electrons in 3-D magnetic material

Friday, Sep 20, 2019

Three images showing electron behavior in 3-D magnetic topological materials

An international team of researchers led by scientists at Princeton University has found that a magnetic material at room temperature enables electrons to behave counterintuitively, acting collectively rather than as individuals. Their collective behavior mimics massless particles and anti-particles that coexist in an unexpected way and together form an exotic loop-like structure. The study was published this week in the journal Science.

“Before this work, evidence for the topological properties of magnets in three dimensions was inconclusive. These new results give us direct and decisive evidence for this phenomenon at the microscopic level,” said M. Zahid Hasan, the Eugene Higgins Professor of Physics at Princeton, who led the research. “This work opens up a new continent for exploration in topological magnets.”

Read the story on the Discovery: Research at Princeton blog.