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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Autores principales: Alexander Mook, Kirill Plekhanov, Jelena Klinovaja, Daniel Loss
Formato: article
Lenguaje:EN
Publicado: American Physical Society 2021
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Acceso en línea:https://doaj.org/article/2368d470695145e18bf4b49a5f3b0882
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