Interaction-Stabilized Topological Magnon Insulator in Ferromagnets
Condensed matter systems admit topological collective excitations above a trivial ground state, an example being Chern insulators formed by Dirac bosons with a gap at finite energies. However, in contrast to electrons, there is no particle-number conservation law for collective excitations, which gi...
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| Auteurs principaux: | , , , |
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| Format: | article |
| Langue: | EN |
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American Physical Society
2021
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| Accès en ligne: | https://doaj.org/article/2368d470695145e18bf4b49a5f3b0882 |
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