Ultrafast spin dynamics in heterogeneous magnetic systems
The Max-Born-Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) conducts basic research in the field of nonlinear optics and ultrafast dynamics arising from the interaction of light with matter, and pursues applications that emerge from this research. It develops and uses ultrafast and ultra-intense lasers and laser-driven short-pulse light sources in a broad spectral range in combination with methods of nonlinear spectroscopy. The spectral range includes in particular XUV radiation and soft x-rays, where experiments at in-house sources are complemented with the use of accelerator driven sources such as free electron x-ray lasers.
With its research, MBI fulfils a national mission and is an integral part of the international scientific community.
Project and job profile:
Ultrashort light pulses can deterministically reverse the magnetisation of thin magnetic films without the need for any external magnetic fields. This fascinating observation is not only of great interest for data storage applications, where in the future individual bits may be switched with light pulses rather than with magnetic fields as employed today. It is also one of the most intriguing phenomena in current solid state research; the underlying microscopic processes are still poorly understood and discussed controversially. The goal of the offered PhD position is to experimentally explore the fundamental mechanisms on their intrinsic ultrafast time and nanometre spatial scale.
We have recently setup a unique experiment based on high harmonic generation to directly access the element-selective magnetic response of thin film systems. A high energy, ultrashort laser pulse generates the spectrum in the extreme ultraviolet spectral range to cover the M-edge resonances of, e.g., Mn, Fe, Co and Ni, allowing to simultaneously measure the response of functional, multi-element magnetic systems. With the short wavelength of the radiation on the order of 20 nm ultrafast magnetic processes on the nanoscale also become accessible. Via magnetron sputtering we can prepare a wide range of relevant magnetic samples in our group.
With our state of the art technical equipment, dedicated supervision, a welcoming team and the opportunities offered by the Graduate School of the CRC/TRR, we offer a productive environment for a successful Ph.D. thesis. The ideal candidate has hands-on experience in optical laboratory work. First experience with ultrashort laser pulses, extreme-ultraviolet radiation, vacuum technology and data analysis software (e.g. Matlab, Phyton) is a strong plus.
Further information available at:
Applications may be sent to Dr. Clemens von Korff Schmising