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Novel magnetic material:
- Powdermetallurgical preparation and characterisation of the
of new rare earth hard magnets, whereas the chemical composition, the
and ageing conditions are changed.
- Preparation and microstructural characterisation of high remanent
magnets up to an energy density
of 460 kJ/m3 and up to a coercive field of 1400 kA/m.
- Preparation and microstructural characterisation of pinning type
SmCo5/Sm2(Co,Fe,Cu)17 hard magnets for high temperature applications up
- Analytical and high resolution electron microscopy of
and sintered magnets based on rare earth -iron/cobalt alloys. Special
is laid on the grain size, the distribution of phases and intergranular
phases. The complex microstructure considerably influences the magnetic
- Analytical and high resolution electron microscopy of advanced
longitudinal and perpendicular magnetic recording media based on CoPt,
FePt and CoPd (thin films, multilayers and nanoparticles).
- Development of a numerical FiniteElement computer program to
solve the Landau-Lifshitz Gilbert equation in order to calculate
dynamic micromagnetic problems of the magnetic reversal process of
recording media and hard/soft magnets, including:
- thermal effects by the nudget elastic band method for
calculating the energy barrier and Langevin micromagnetic techniques
- multiscale modelling techniques for simulating the simultaneous
bit write and read processes of recording devices (head, media and soft
- Simulation of the quantitative interaction between magnetisation
- hard rare earth permanent magnets
magnets with remanence enhancement effect
- Simulation of the magnetisation switching of longitudinal
and perpendicular magnetic recording media based on
- CoCrPtX thin films, CoPd multilayers and FePt
- exchange coupled multilayers (AF-FM, softFM-hardFM) for
thermally assisted writing (HARM).
- elements for future recording technologies, such as
percolation media, patterned disks, etc.
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