The emergence of collective order in matter is among the most fundamental and intriguing
phenomena in physics. In recent years, the dynamical control and creation of novel ordered …

Strategies for the ultrafast optical control of magnetism have been a topic of intense research
for several decades because of the potential impact in technologies such as magnetic …

We present a mechanism by which optically driven chiral phonon modes in rare-earth
trihalides generate giant effective magnetic fields acting on the paramagnetic 4 f spins. With …

Optical manipulation of magnetization with femtosecond laser pulses has opened a new
paradigm shift in magnetization and spin dynamics. Since the very first demonstration of …

The magneto-optical and opto-magnetic effects describe the interaction of light with a
magnetic medium. The most prominent examples are the Faraday and Cotton-Mouton …

We provide a quantum theoretical description of the magnetic polarization induced by
intense circularly polarized light in a material. Such effect—commonly referred to as the …

In experiment and theory, we resolve the mechanism of ultrafast optical magnon excitation in
antiferromagnetic NiO. We employ time-resolved optical two-color pump-probe …

Abstract Fe 3 O 4 nanoring (NR) composites anchored on the nanolayers of expanded
graphite (EG) were prepared through solvothermal–surface modification–sintering approach …

Currently spin waves are considered for computation and data processing as an alternative
to charge currents. Generation of spin waves by ultrashort laser pulses provides several …

Using the examples of laser-induced spin-reorientation phase transitions in TmFeO 3 and
ErFeO 3 orthoferrites, we demonstrate that terahertz emission spectroscopy can obtain novel …