5 papers
Physical spin torques from exactly constrained exchange-correlation torques
Jacques K. Desmarais, Kamel Bencheikh, Giovanni Vignale +1
The problem of capturing physical spin torques in non-collinear magnetic systems has dominated the scene of spin-density functional theory (SDFT) in the last two decades. Progress…
Altermagnetism, Kagome Flat Band, and Weyl Fermion States in Magnetically Intercalated Transition Metal Dichalcogenides
Avinash Sah, Ting-Yong Lim, Clayton Conner +5
Altermagnetic (AM) compounds have recently emerged as a promising platform for realizing unconventional quantum phases, enabled by their unique spin-split band structure at zero ne…
Meta-Generalized-Gradient Approximation made Magnetic
Jacques K. Desmarais, Alessandro Erba, Giovanni Vignale +1
The Jacob's ladder of density functional theory (DFT) proposes the compelling view that by extending the form of successful approximations -- being guided by exact conditions and s…
Insulator-Metal Transition and Magnetic Crossover in Bilayer Graphene
Amarnath Chakraborty, Aleksandr Rodin, Shaffique Adam +1
In-plane magnetic fields offer a relatively unexplored opportunity to alter the band structure of stacks of 2D materials so that they exhibit desired physical properties. Here we s…
Many-body perturbation theory for moiré systems
Liangtao Peng, Giovanni Vignale, Shaffique Adam
Moiré systems such as magic-angle twisted bilayer graphene have attracted significant attention due to their ability to host correlated phenomena including superconductivity and s…