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Time-resolved X-ray microscopy of nanoparticle aggregates under oscillatory shear
G. K. Auernhammer, K. Fauth, B. Ullrich +3
Of all current detection techniques with nanometer resolution, only X-ray microscopy allows imaging nanoparticles in suspension. Can it also be used to investigate structural dynam…
X-ray imaging of the dynamic magnetic vortex core deformation
A. Vansteenkiste, K. W. Chou, M. Weigand +8
Magnetic platelets with a vortex configuration are attracting considerable attention. The discovery that excitation with small in-plane magnetic fields or spin polarised currents c…
Vortex core switching by coherent excitation with single in-plane magnetic field pulses
Markus Weigand, Bartel Van Waeyenberge, Arne Vansteenkiste +9
The bistability of the core magnetization of nano-scaled magnets with a magnetic vortex configuration has great potential for data storage applications. To exploit this, reliable s…
Polarisation selective magnetic vortex dynamics and core reversal in rotating magnetic fields
M. Curcic, B. Van Waeyenberge, M. Weigand +8
A magnetic vortex occurs as an equilibrium configuration in thin ferromagnetic platelets of micron and sub-micron size and is characterised by an in-plane curling magnetisation. At…