RESEARCH TOPICS
SPIN DYNAMICS
Spin dynamic projects look deeply into transient processes associated with electron, magnetization and spin dynamics on femtosecond time scales with the help of high- order laser harmonic.
ALL-OPTICAL SWITCHING
AOS projects investigate physical conditions and materials that allow a complete control of magnetic state using laser light for possible future applications in spin electronics.
RESONANT SCATTERING
In resonant scattering experiments, extreme ultraviolet light is used to investigate lateral distribution and dynamics of magnetic domains on nanometer length- and femtosecond time scales.
ELECTRONIC BAND-STRUCTURE DYNAMIC
By tracing the dynamical changes of electronic band structure after the light excitatation, photoelectron spectroscopy is best suited to provide answers to the still unsolved phenomena associated with optical control of magnetic state.
NOVEL PHOTON SOURCES
In this project we are exploring laser driven processes for generation of high-energy photons that will allow further extension of comprehensive investigation techniques of complex materials, such as element selective dynamics, dynamical maping of electron band-structure or domain imaging with nanometer spatial resolution in soft X-ray spectral range.
research objective
In our research, we identify physical phenomena governing the electron- and spin dynamics in novel materials on femtosecond time scales. We employ cutting-edge scientific tools and techniques including laser-generated high-order harmonics, photoemission, and small angle XUV light scattering. Further experimental techniques such as AFM, TEM, MFM and SQUID as well as an access to synchrotron radiation are available for additional or preliminary characterization of the samples. One of the most intriquing research topics is the studies of the optically triggered spin-current flow and its role in optical control of magnetic state on ultrashort time scales.
group members
Christian Greb
Sarah Heidtfeld
Fangzhou Wang
Derang Cao
