Interacting topological magnons in the Kitaev-Heisenberg honeycomb ferromagnets with Dzyaloshinskii-Moriya interaction

Jie Wang; Pei Chen; Bing Tang

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arXiv · 2501.02689

Interacting topological magnons in the Kitaev-Heisenberg honeycomb ferromagnets with Dzyaloshinskii-Moriya interaction

Jie Wang·Pei Chen·Bing Tang

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Abstract

This theoretical work is devoted to investigating the magnon-magnon interaction effect in a two-dimensional Heisenberg-Kitaev honeycomb ferromagnet with Dzyaloshinskii-Moriya interaction (DMI). Based on the first-order Green function formalism, we calculate the thermal-fluctuation-induced temperature-dependent self-energy corrections of magnons. Our calculations reveal that the critical temperature for temperature-induced topological phase transitions monotonically approaches the Curie temperature with increasing DMI strength. Furthermore, it is shown that the critical temperature for topological phase transitions is correlated with Dzyaloshinskii-Moriya interaction and magnetic field strength.

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Jie Wang, Pei Chen, Bing Tang. 2025-01-05. Interacting topological magnons in the Kitaev-Heisenberg honeycomb ferromagnets with Dzyaloshinskii-Moriya interaction. https://arxiv.org/abs/2501.02689

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