226 citations · 1k across the 36 of their papers we have counts for
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Magnon-polarons in cubic collinear Antiferromagnets
Haakon T. Simensen, Roberto E. Troncoso, Akashdeep Kamra +1
We present a theoretical study of excitations formed by hybridization between magnons and phonons - magnon-polarons - in antiferromagnets. We first outline a general approach to de…
Many-body theory of spin-current driven instabilities in magnetic insulators
Roberto E. Troncoso, Arne Brataas, Rembert A. Duine
We consider a magnetic insulator in contact with a normal metal. We derive a self-consistent Keldysh effective action for the magnon gas that contains the effects of magnon-magnon…
Antiferromagnetic Single-layer Spin-Orbit Torque Oscillators
Roberto E. Troncoso, Karsten Rode, Plamen Stamenov +2
We show how a charge current through a single antiferromagnetic layer can excite and control self-oscillations. Sustained oscillations with tunable amplitudes and frequencies are p…
Magnetostriction in Antiferromagnets
Haakon T. Simensen, Roberto E. Troncoso, Arne Brataas
We consider magnetostriction in magnetic materials. Starting from a microscopic lattice model of the magneto-elastic coupling, we derive the continuum magnetostriction Hamiltonian…
Gilbert damping phenomenology for two-sublattice magnets
Akashdeep Kamra, Roberto E. Troncoso, Wolfgang Belzig +1
We present a systematic phenomenological description of Gilbert damping in two-sublattice magnets. Our theory covers the full range of materials from ferro- via ferri- to antiferro…
Flat Bands, Indirect Gaps, and Unconventional Spin-Wave Behavior Induced by a Periodic Dzyaloshinskii-Moriya Interaction
R. A. Gallardo, D. Cortés-Ortuño, T. Schneider +7
Periodically patterned metamaterials are known for exhibiting wave properties similar to the ones observed in electronic band structures in crystal lattices. In particular, periodi…