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Researchers discover a layer hall effect in a 2D topological Axion antiferromagnet
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The Role of Phonons in a Topological Material
January 27, 2021•
Physics 14, s11
Unusual interactions occur between phonons and electrons in the topological semimetal tungsten diphosphide, a finding that could explain some of the material’s strange properties.
Y. Wang and G. Varnavides/Harvard University
Y. Wang and G. Varnavides/Harvard University
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The fundamental interactions underlying many unusual electronic properties of topological semimetals are still not well understood. Now, an investigation by Kenneth Burch of Boston College, Massachusetts, and colleagues into the topological semimetal tungsten diphosphide (
WP
2) has found that the material’s peculiar charge-transport behavior is largely due to electron-phonon scattering [1]. The researchers say that understanding the importance of such interactions could guide efforts to discover other similar materials.