Terahertz (THz) light has proven to be a fine tool to probe and control quasi-particles and
collective excitations in solids, to drive phase transitions and associated changes in material …

The interaction of subpicosecond laser pulses with magnetically ordered materials has
developed into a fascinating research topic in modern magnetism. From the discovery of …

Modern computing technology is based on writing, storing and retrieving information
encoded as magnetic bits. Although the giant magnetoresistance effect has improved the …

The possibility of manipulating magnetic systems without applied magnetic fields have
attracted growing attention over the past fifteen years. The low-power manipulation of the …

We experimentally demonstrate that the magnetization can be reversed in a reproducible
manner by a single 40 femtosecond circularly polarized laser pulse, without any applied …

This book emerged from a close collaboration of the authors which started in the fall of 2000.
Early that year one of us (JS) had joined the Stanford faculty after spending nearly 15 years …

We report on magnetic domain-wall velocity measurements in ultrathin Pt/Co (0.5–0.8 nm)/Pt
films with perpendicular anisotropy over a large range of applied magnetic fields. The …

Laser pulses induce spin-selective charge flow that we show to generate dramatic changes
in the magnetic structure of materials, including a switching of magnetic order from …

Femtosecond laser excitation of a ferromagnetic material creates energetic spin-polarized
electrons that have anomalous transport characteristics. We develop a semiclassical theory …

Compact, tunable, radially symmetric focusing of electrons is critical to laser-plasma
accelerator (LPA) applications. Experiments are presented demonstrating the use of a …