Topological magnonics in the two-dimensional van der Waals magnet CrI3
Author
dc.contributor.author
Aguilera, Esteban
Author
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Jaeschke Ubiergo, R.
Author
dc.contributor.author
Vidal Silva, N.
Author
dc.contributor.author
Foa Torres, Luis
Author
dc.contributor.author
Núñez Vásquez, Álvaro
Admission date
dc.date.accessioned
2020-10-15T20:19:10Z
Available date
dc.date.available
2020-10-15T20:19:10Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Physical Review B 102, 024409 (2020)
es_ES
Identifier
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10.1103/PhysRevB.102.024409
Identifier
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https://repositorio.uchile.cl/handle/2250/177164
Abstract
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We report on the magnon spectrum of Kitaev-Heisenberg magnets and extract the parameters to model a two-dimensional CrI3. Our minimal spin Hamiltonian includes a contribution stemming from a Heisenberg, isotropic exchange, and a contribution arising from a Kitaev interaction, anisotropic and frustrated exchange. Our calculations reveal a gap that opens at the K and K' points and the topological nature of the magnons which lead to the thermal Hall effect. Furthermore, we calculate the magnon spectrum of nanoribbons illustrating the corresponding edge states.
es_ES
Patrocinador
dc.description.sponsorship
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
CONICYT FONDECYT
1190324
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
CONICYT FONDECYT
3190264
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
CONICYT PIA/BASAL
AFB180001
Abdus Salam International Center for Theoretical Physics through the Simons Foundation