Blar i NTNU Open på forfatter "Troncoso, Roberto"
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Fingerprints of Universal Spin-Stiffness Jump in Two-Dimensional Ferromagnets
Troncoso, Roberto; Brataas, Arne; Sudbø, Asle (Peer reviewed; Journal article, 2020)Motivated by recent progress on synthesizing two-dimensional magnetic van der Waals systems, we propose a setup for detecting the topological Berezinskii-Kosterlitz-Thouless phase transition in spintransport experiments ... -
Magnon decay theory of Gilbert damping in metallic antiferromagnets
Simensen, Haakon Thømt; Kamra, Akashdeep; Troncoso, Roberto; Brataas, Arne (Peer reviewed; Journal article, 2020)Gilbert damping is a key property governing magnetization dynamics in ordered magnets. We present a theoretical study of intrinsic Gilbert damping induced by magnon decay in antiferromagnetic metals through s−d exchange ... -
Magnon Excitations of a Dzyaloshinskii-Moriya Coupled Insulating 2D Antiferromagnetic Skyrmion
Sørheim, Sondre Bergem (Master thesis, 2018)Motivated by recent experimental progress in realizing novel antiferromagnetic phases with state-of-the-art characteristics for memory storage and information processing, we study the magnon excitation spectra and eigenmodes ... -
Magnon-polarons in cubic collinear antiferromagnets
Simensen, Haakon Thømt; Troncoso, Roberto; Kamra, Akashdeep; Brataas, Arne (Peer reviewed; Journal article, 2019)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 determining which magnon and phonon modes can ... -
Spin Wave Modulation in Antiferromagnetic Magnonic Crystals with Interfacial Dzyaloshinskii-Moriya Interaction
Pedersen, Håkon (Master thesis, 2019)Framveksten av fagområdet spinntronikk har åpnet et nytt, interessant felt i fysikken fra både teoretisk og teknologisk ståsted. Motivert av muligheten for nye måter å sende, prosessere og lagre informasjon, samt nylige ... -
Thermal squeezing and nonlinear spectral shift of magnons in antiferromagnetic insulators
Shiranzaei, Mahroo; Troncoso, Roberto; Fransson, Jonas; Brataas, Arne; Qaiumzadeh, Alireza (Peer reviewed; Journal article, 2022)We investigate the effect of magnon–magnon interactions on the dispersion and polarization of magnon modes in collinear antiferromagnetic (AF) insulators at finite temperatures. In two-sublattice AF systems with uniaxial ...