Patrick Matthes
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View article: Optical and magneto‐optical properties of pulsed laser‐deposited thulium iron garnet thin films
Optical and magneto‐optical properties of pulsed laser‐deposited thulium iron garnet thin films Open
This work presents a combined optical and magneto‐optical spectroscopic study of thulium iron garnet (Tm 3 Fe 5 O 12 , TmIG) films on substituted gadolinium gallium garnet (Gd 2.6 Ca 0.4 Ga 4.1 Mg 0.25 Zr 0.65 O 12 , sGGG) substrates. Spec…
View article: Terahertz charge and spin transport in metallic ferromagnets: The role of crystalline and magnetic order
Terahertz charge and spin transport in metallic ferromagnets: The role of crystalline and magnetic order Open
We study the charge and spin dependent scattering in a set of CoFeB thin films whose crystalline order is systematically enhanced and controlled by annealing at increasingly higher temperatures. Terahertz conductivity measurements reveal t…
View article: Tunable\nMagnetic Vortex Dynamics in Ion-Implanted\nPermalloy Disks
Tunable\nMagnetic Vortex Dynamics in Ion-Implanted\nPermalloy Disks Open
Nanoscale,\nlow-phase-noise, tunable transmitter–receiver\nlinks are key for enabling the progress of wireless communication.\nWe demonstrate that vortex-based spin-torque nano-oscillators, which\nare intrinsically low-noise devices becaus…
View article: Charged domains in ferroelectric, polycrystalline yttrium manganite thin films resolved with scanning electron microscopy
Charged domains in ferroelectric, polycrystalline yttrium manganite thin films resolved with scanning electron microscopy Open
We have investigated ferroelectric charged domains in polycrystalline hexagonal yttrium manganite thin films (Y 1 Mn 1 O 3 , Y 0.95 Mn 1.05 O 3 , Y 1 Mn 0.99 Ti 0.01 O 3 , and Y 0.94 Mn 1.05 Ti 0.01 O 3 ) by scanning electron microscopy (S…
View article: Spectroscopic ellipsometry and magneto-optical Kerr effect spectroscopy study of thermally treated Co<sub>60</sub>Fe<sub>20</sub>B<sub>20</sub> thin films
Spectroscopic ellipsometry and magneto-optical Kerr effect spectroscopy study of thermally treated Co<sub>60</sub>Fe<sub>20</sub>B<sub>20</sub> thin films Open
We report the optical and magneto-optical properties of amorphous and crystalline Co 60 Fe 20 B 20 films with thicknesses in the range of 10 nm to 20 nm characterized using spectroscopy ellipsometry (SE) and magneto-optical Kerr effect (MO…
View article: Switching field distribution of exchange coupled ferri-/ferromagnetic composite bit patterned media
Switching field distribution of exchange coupled ferri-/ferromagnetic composite bit patterned media Open
We investigate the switching field distribution and the resulting bit error rate of exchange coupled ferri-/ferromagnetic bilayer island arrays by micromagnetic simulations. Using islands with varying microstructure and anisotropic propert…
View article: Magnetic and Magneto-Transport Properties of Hard Magnetic Thin Film Systems
Magnetic and Magneto-Transport Properties of Hard Magnetic Thin Film Systems Open
The present thesis is about the investigation of ferromagnetic thin film systems with respect to exchange coupling, magnetization reversal behavior and effects appearing in magnetic heterostructures, namely the exchange bias and the giant …
View article: Optimum Laser Exposure for Setting Exchange Bias in Spin Valve Sensors
Optimum Laser Exposure for Setting Exchange Bias in Spin Valve Sensors Open
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