Scientists make a surprising discovery about magnetic defects in topological insulators

Friday, June 9, 2023 - 11:54 in Physics & Chemistry

Scientists from the Department of Energy's Ames National Laboratory made an intriguing discovery while conducting experiments to characterize magnetism in a material known as a dilute magnetic topological insulator where magnetic defects are introduced. Despite this material's ferromagnetism, the team discovered strong antiferromagnetic interactions between some pairs of magnetic defects that play a key role in several families of magnetic topological insulators.

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