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19 december 2018

Closed FOM programme


Number 109. 
Title Controlling spin dynamics in magnetic nanostructures: combining fast time and short length scales for tomorrow's technology (SPIN)
Executive organisational unit BUW
Programme management Prof.dr. Th.H.M. Rasing
Duration 2009-2015
Cost estimate  M€ 3.1

To create a generic understanding of ultrafast spin-transfer phenomena and processes, to explore the possibilities and fundamental limitations with regards to time scale, and develop new concepts for the controlled manipulation of magnetization and spin ensembles operating in the regimes of ultrafast and small simultaneously. In particular, the programme envisions bringing fast optical control to the nanoscale, and bringing electrical spin control to the picosecond time scale using concepts and knowledge from both approaches to create cross-fertilization.

Background, relevance and implementation
The demand for the ever-increasing speed and density of systems for information manipu­lation and storage has triggered an intense search for ways to control the magnetization of a medium. Following Moore's law, miniaturization of bits in magnetic recording and informa­tion processing technologies is already successfully entering the nano world, while concomi­tantly the rates of recording and retrieving magnetically stored information need to be increased as well. Finding new approaches to reverse magnetization by means other than magnetic fields is a fundamental challenge with important consequences for technology.
Two very recent, revolutionary concepts will serve as cornerstones for our programme:
1) The ultrafast manipulation of magnetic matter by femtosecond laser pulses;
2) The use of a spin-polarized current to transfer angular momentum across boundaries in magnetic nanostructures and devices.
The programme will focus on a) the fundamental aspects of angular momentum transfer at ultrafast timescales in magnetic nanostructures as well as b) the development of new concepts for ultrafast spin manipulation on the nanoscale.
The consortium of partners has the necessary complementary expertise to address both themes. Each theme will bring together the expertise of the consortium members in a combined optical, electrical, experimental and theoretical approach, with specific (PhD/PD) projects always including two or more partners.

Please find a research highlight that was achieved in 2013 within this FOM programme here.