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Magnon chiral damping beyond the Dzyaloshinskii-Moriya interaction
Darpa Narayan Basu, Subhadip Ghosh, Peter M. Oppeneer +2
Magnon chiral damping denotes damping that is asymmetric with respect to the magnon wave vector. Such nonreciprocity has been attributed to antisymmetric Dzyaloshinskii-Moriya spin…
Momentum-dependent precessional and nutational spin pumping in a honeycomb antiferromagnet
Suman Mukherjee, Subhadip Ghosh, Ritwik Mondal
The ultrafast magnetic inertial dynamics on subpicosecond timescales generate an additional high-frequency terahertz nutational resonance. Here, we investigate momentum-resolved sp…
Spin Inertia as a Source of Topological Magnons: Chiral Edge States from Coupled Precession and Nutation
Subhadip Ghosh, Mikhail Cherkasskii, Ritwik Mondal +2
Spin inertia has been demonstrated to give rise to high-frequency nutational excitations beyond the conventional low-frequency precessional modes. Here, we demonstrate that the hyb…