Browsing Fakultät für Physik (inkl. GAUSS) by Advisor "Münzenberg, Markus Prof. Dr."
Now showing items 1-9 of 9
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Magnetization and elastic dynamics in nanostructured metamaterials
(2016-03-24)In this work, magnetization and elastic dynamics in nano-structured artificial materials have been investigated in an all-optical, time-resolved, pump-probe experimental setup. Rich dynamics are brought about by means ... -
Spindynamik in Tunnelelementen mit senkrechter magnetischer Anisotropie
(2015-02-11)During the last thirty years the memory space per square centimeter on the memory unit was increased exponential. The reason for such strong improvement is the continuous decreasing of the unit cells down to nanometer ... -
The tunnel magneto-Seebeck effect in magnetic tunnel junctions
(2014-01-30)The present (cumulative) thesis focusses on thermomagnetoelectric effects in magnetic tunnel junctions. In particular, it deals with the measurement of the tunnel magneto-Seebeck (TMS) effect in tunnel junctions incorporating ... -
Photo-magnonics in two-dimensional antidot lattices
(2013-01-11)The essential subject of the present (cumulative) thesis is the all-optical generation and detection as well as the systematic manipulation of magnetic excitations, so-called spin waves or magnons. In particular, the ... -
Physics of laser heated ferromagnets: Ultrafast demagnetization and magneto-Seebeck effect
(2012-07-16)Including the spin degree of freedom into electronic circuits e.g. as non-volatile memory devices, requires the exact knowledge of the speed with which writing information is possible. All-optical pump-probe experiments ... -
Korrelationen zwischen struktureller Ordnung und elektrischen Transporteigenschaften in CoFeB|MgO|CoFeB Tunnelmagnetowiderstandselementen
(2010-10-19)Magnetic tunnel junctions with amorphous ferromagnetic CoFeB electrodes and a crystalline MgO Barrier show a very high tunnel magnetoresistance (TMR). In epitaxial systems of Fe/MgO/Fe(001) ... -
Ab-initio Studies of X-ray Scattering
(2010-07-15)As the emergence of the FEL sources opens up new opportunities in material research, the theory and modeling of the behavior of matter in strong x-ray laser fields, as well as novel approaches ... -
Current-Induced Excitations in Ferromagnetic Single Layer and Trilayer Nanodevices
(2007-06-27)The magnetization of a ferromagnetic nanostructure can be manipulated by a spin-polarized electrical current. Thus the switching mechanisms in Co/Cu/Co trilayers as well as in Co single ... -
Magnetization dynamics in all-optical pump-probe experiments: spin-wave modes and spin-current damping
(2007-02-19)In the field of spintronics, future development demands a new insight into the magnetization relaxation processes in the sub nanosecond regime. With the time resolution inherent, femtosecond ...