- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Semiconductor materials and devices
- Thin-Film Transistor Technologies
- Magneto-Optical Properties and Applications
- Silicon and Solar Cell Technologies
- Magnetic properties of thin films
- Inorganic Fluorides and Related Compounds
- Silicon Carbide Semiconductor Technologies
- Quantum and electron transport phenomena
- Multiferroics and related materials
- Iron-based superconductors research
- Silicon Nanostructures and Photoluminescence
- Magnetic Properties and Applications
- Magnetic and transport properties of perovskites and related materials
- Plasma Diagnostics and Applications
- Ferroelectric and Piezoelectric Materials
- 2D Materials and Applications
- Catalytic Processes in Materials Science
Fraunhofer Research Institution for Microsystems and Solid State Technologies
2016-2018
Universität der Bundeswehr München
2017
Bavarian Academy of Sciences and Humanities
2012-2013
Colorado State University
2010
We experimentally investigate and quantitatively analyze the spin Hall magnetoresistance effect in ferromagnetic insulator/platinum insulator/nonferromagnetic metal/platinum hybrid structures. For insulator, we use either yttrium iron garnet, nickel ferrite, or magnetite for nonferromagnet, copper gold. The is theoretically ascribed to combined action of inverse platinum metal top layer. It therefore should characteristically depend upon orientation magnetization adjacent ferromagnet prevail...
Using X-ray magnetic circular dichroism (XMCD) measurements, we explore the possible existence of induced moments in thin Pt films deposited onto ferrimagnetic insulator yttrium iron garnet (Y3Fe5O12). Such a proximity effect is well established for Pt/ferromagnetic metal heterostructures. Indeed, observe clear XMCD signal at L3 edge Pt/Fe bilayers, while no such can be discerned traces Pt/Y3Fe5O12 bilayers. Integrating signals allows to estimate an upper limit polarization
This paper reports on the tuning of both magnetic and electric responses with fields for metglas-Pb (Zr,Ti)O3 based magnetoelectric (ME) heterostructures that can be promising communication sensor applications. The hysteresis loop results indicate a change in in-plane magnetization due to application voltages leads ferromagnetic resonance frequency by up about 210 MHz field. Furthermore, these structures show high ME voltage coefficient detection 2 nT ac field low noise floor.
The gases used in industrial cleaning processes are considered greenhouse with a high global warming potential (GWP). It is important to provide viable alternative chemical vapor deposition (CVD) gas that capable of removing efficiently deposited layers on the CVD chamber inner wall and other parts apparatus. has be environmental friendly order avoid accentuation phenomena. Besides that, should compatible existing delivery system equipment already by companies. Only fulfilling three...
The target of this work was to find viable alternative CVD-cleaning gas mixtures for the semiconductor industry, which are environmental-friendly and in addition can be used as a “drop in” avoid high investment costs from equipment modification. Our study has demonstrated that achieved with F 2 -based mixtures, also provide more efficient faster cleaning behavior most applications. A efficiency gain factor 1.3 up 17 expected, relative -amount required cleaning. This depends on replaced...
The epitaxial growth of silicon layers is an important step in the fabrication semiconductor devices. For conventional epitaxy, high temperatures, up to 900 °C are necessary. However, future, technology epitaxy processes at lower temperatures required increase integration density. goal this study was investigate microwave plasma assisted for selective removing thin oxide, cleaning surfaces and depositing quality films. main focus apply these low temperature epitaxy. All processes, such as...