3 papers
cond-mat.mtrl-sci2026
Classifying magnons in itinerant ferromagnets from linear response TDDFT: Fe, Ni and Co revisited
Thorbjørn Skovhus, Thomas Olsen
The magnetic excitation spectrum of itinerant magnets exhibits rich and complex spectral features that often complicate interpretation of the underlying physics. For perturbations…
cond-mat.mtrl-sci2025
Implementation of the magnetic force theorem for large-scale calculations of magnon bands: application to yttrium iron garnet
Thorbjørn Skovhus, Varun Rajeev Pavizhakumari, Thomas Olsen
We present an efficient implementation of the magnetic force theorem which allows for direct evaluation of exchange parameters in q-space. The exchange parameters are calculated di…
cond-mat.mtrl-sci2024
Beyond the random phase approximation for calculating Curie temperatures in ferromagnets: application to Fe, Ni, Co and monolayer CrI3
Varun Rajeev Pavizhakumari, Thorbjørn Skovhus, Thomas Olsen
The magnetic properties of solids are typically analyzed in terms of Heisenberg models where the electronic structure is approximated by interacting localized spins. However, even…