We review the phenomenology of light-induced ultrafast magnetization dynamics, with
emphasis on metallic compounds. The interaction of femtosecond laser pulses with …

Recent observations of switching of magnetic domains in ferromagnetic metals by circularly
polarized light, so-called all-optical helicity dependent switching, has renewed interest in the …

Ferroics include diverse degrees of freedom (such as structural distortions and magnetic
moments) among which cross couplings occur, rendering a large variety of interesting …

First-principles calculations, in combination with the four-state energy map** method, are
performed to extract the magnetic interaction parameters of multiferroic BiFeO 3. Such …

Understanding and manipulating complex spin texture in multiferroics can offer new
perspectives for electric field-controlled spin manipulation. In BiFeO3, a well-known room …

Starting from the Dirac-Kohn-Sham equation, we derive the relativistic equation of motion of
spin angular momentum in a magnetic solid under an external electromagnetic field. This …

We carry out density functional theory (DFT) calculations to explore the antiferromagnetic
(AFM) spin cycloid in multiferroic BiFeO 3 of the R 3 c ground state structure. We calculate …

We report a first-principles study of the recently predicted P mc 2 1 phase of the multiferroic
BiFeO 3 material, revealing a novel magnetoelectric effect that makes it possible to control …

On the basis of the Dirac equation, a relativistic interaction Hamiltonian is derived which
linearly couples the angular momentum density j of the electromagnetic (EM) field and the …

Using a first-principles-based effective Hamiltonian within molecular dynamics simulations,
we discover that applying an electric field that is opposite to the initial direction of the …