Innovative technology of cold ultrafast photo-magnetic recording and novel approach to ultrafast opto-spintronics
Project leader: dr hab. Andrzej Stupakiewicz, prof. UwB
Project duration: May 2018 – April 2021
Project value: PLN 3 300 000
Fundamental challenges need to be solved on the route to the ultrafast computing of the future. The minor improvements in the memory speed and the efficiency, along with the growing CPU-memory gap, have significantly limited the developments in computing during the last decades. The large power consumption in the global scale, the generation of massive amounts of waste heat and the difficulties in managing the thermal dissipation within both the single chips and huge IT data centers are growing issues. This brings the obvious question – what can the ultrafast magnetism offer in this regard?
The goal of TEAM project is to research and employ “cold ultrafast photo-magnetism” in order to achieve the fastest possible as well as least dissipative magnetic recording in an innovative technology. At the same time the project will develop a novel approach to ultrafast spintronics by bringing together the three areas of ultrafast magnetism, coherent nonlinear optics and electronics.
Controlling strongly correlated materials and emerging phenomena by femtosecond laser pulses is a hot topic in modern science. Many new concepts have been used to develop physical approaches based on light-, current- and magnetic field-induced control of the magnetization state, which is a problem of non-dissipative manipulation of spin and magnetic order with high both temporal and spatial resolutions. Ultrafast magnetism on a femtosecond scale is a new research area that promises to impact future magnetic recording technology. Recently we demonstrated the novel mechanism for nonthermal ultrafast all-optical magnetic recording in dielectric Co-doped iron garnet films. In this project, we intend to use dielectric garnets and hybrid structures (metal/garnets), which are currently regarded as very promising materials for a variety of research topics in the ultrafast magneto-optics, spintronics and cold photo-magnetism research.