Findings in the field of spintronics
Helmholtz researchers are developing new materials systems for data storage
Graphene on silicon carbide could be an interesting candidate for future spintronik components. Squeezing gold atoms between the semiconducting substrate and graphene does enhance spin-orbit interaction at hot spots and shows ways to controll the spins. First results at BESSY II are now published in Applied Physics Letters.
Detailed information in the HZB press release
To the publication:Rashba splitting of 100 meV in Au-intercalated graphene on SiC,D. Marchenko, A. Varykhalov, J. Sánchez-Barriga, Th. Seyller and O. Rader.Appl. Phys. Lett. 108, 172405 (2016); http://dx.doi.org/10.1063/1.4947286
Resetting the future of Heat Assisted Magnetic Recording
A HZB team has examined thin films of Dysprosium-Cobalt sputtered onto a nanostructured membrane at BESSY II. They showed that new patterns of magnetization could be written in a quick and easy manner after warming the sample to only 80 °Celsius, which is a much lower temperature as compared to conventional Heat Assisted Magnetic Recording systems. This paves the way to fast and energy efficient ultrahigh density data storage. The results are published now in the new journal Physical Review Applied
Detailed information in the HZB press release
To the publication: Ferrimagnetic DyCo5 nanostructures for bits in heat-assisted magnetic recording.A. A. Ünal, S. Valencia, F. Radu, D. Marchenko, K. J. Merazzo, M. Vázquez, and J. Sánchez-Barriga, Phys. Rev. Applied 5, 064007, Doi:http://dx.doi.org/10.1103/PhysRevApplied.5.064007
More information:
Helmholtz-Zentrum Berlin für Materialien und Energie
Department Materials for Green Spintronics
Albert-Einstein-Str. 15
12489 Berlin
www.helmholtz-berlin.de/forschung/oe/em/m-dynamik/index_en.html