11 citations · 35 across the 9 of their papers we have counts for
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Critical temperatures of two dimensional magnets beyond linear spin wave theory: application to CrI, MPS (M=Ni, Mn, Fe) and CrSBr
Varun Rajeev Pavizhakumari, Thomas Olsen
Magnetic anisotropy is crucial for sustaining long range magnetic order in two-dimensional materials (2D) and must be taken into account by any approximate scheme for calculating c…
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…
Predicting the Néel temperatures in general helimagnetic materials: a comparison between mean field theory, random phase approximation, renormalized spin wave theory and classical Monte Carlo simulations
Varun Rajeev Pavizhakumari, Thomas Olsen
The critical temperature for magnetic order comprises a crucial property of any magnetic material and ranges from a few Kelvin in certain antiferromagnets to 1400 K in ferromagneti…