Magnetic field control of topological magnon-polaron bands in two-dimensional ferromagnets

Cited 5 time in webofscience Cited 0 time in scopus
  • Hit : 107
  • Download : 0
We theoretically study magnon-phonon hybrid excitations in a square lattice ferromagnet subjected to a magnetic field by varying the field direction. The bulk bands of hybrid excitations, which are referred to as magnon-polarons, are investigated by considering all three phonon modes: Vertical phonon, transverse phonon, and longitudinal phonon. We show that the topological properties of three hybridizations are different in terms of the Berry curvature and the Chern numbers. We also find that the topological properties of the bands can be controlled by changing the direction of the magnetic field, exhibiting one or more topological phase transitions. The dependence of thermal Hall conductivity as a function of magnetic field direction is proposed as an experimental probe of our theoretical results.
Publisher
AMER PHYSICAL SOC
Issue Date
2020-03
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW B, v.101, no.12, pp.125111

ISSN
2469-9950
DOI
10.1103/PhysRevB.101.125111
URI
http://hdl.handle.net/10203/276734
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 5 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0