137 citations · 267 across the 11 of their papers we have counts for
11 papers
Efficient terahertz optical filtering with large-area all-metal and polymer-metal woven wire meshes
Simon Rossel, Wentao Zhang, Hassan A. Hafez +2
Many components for terahertz (THz) optical filtering are mechanically fragile and are hard to produce with large aperture, making them unsuitable for applications where larger THz…
Time-dependent terahertz dielectric function of ZnTe under two-photon optical excitation at 800 nm wavelength
Farell Keiser, Wentao Zhang, Dominik Johannesmann +5
ZnTe is arguably the most widely used nonlinear crystal for the generation and detection of THz radiation, used in conjunction with sub-bandgap optical excitation by femtosecond la…
Terahertz field effect in a two-dimensional semiconductor MoS2
Tomoki Hiraoka, Sandra Nestler, Wentao Zhang +6
Layered two-dimensional (2D) materials, with their atomic-scale thickness and tunable electronic, optical, and mechanical properties, open many promising pathways to significantly…
Disentangling complex current pathways in a metallic Ru/Co bilayer nanostructure using THz spectroscopy
Nicolas S. Beermann, Savio Fabretti, Karsten Rott +3
Many modern spintronic technologies, such as spin valves, spin Hall applications, and spintronic THz emitters, are based on electrons crossing buried internal interfaces within met…
Spin Hall magnetoresistance in heterostructures consisting of noncrystalline paramagnetic YIG and Pt
Michaela Lammel, Richard Schlitz, Kevin Geishendorf +8
The spin Hall magnetoresistance (SMR) effect arises from spin-transfer processes across the interface between a spin Hall active metal and an insulating magnet. While the SMR respo…
Large anomalous Nernst effect in thin films of the Weyl semimetal Co2MnGa
Helena Reichlova, Richard Schlitz, Sebastian Beckert +11
The magneto-thermoelectric properties of Heusler compound thin films are very diverse. Here, we discuss the anomalous Nernst response of CoMnGa thin films. We systematically st…
Evolution of the Spin Hall Magnetoresistance in CrO/Pt bilayers close to the Néel temperature
Richard Schlitz, Tobias Kosub, Andy Thomas +4
We study the evolution of magnetoresistance with temperature in thin film bilayers consisting of platinum and the antiferromagnet CrO with its easy axis out of the plane. W…
Sign change in the tunnel magnetoresistance of Fe3O4/MgO/Co-Fe-B magnetic tunnel junctions depending on the annealing temperature and the interface treatment
Luca Marnitz, Karsten Rott, Stefan Niehörster +12
Magnetite (Fe3O4) is an eligible candidate for magnetic tunnel junctions (MTJs) since it shows a high spin polarization at the Fermi level as well as a high Curie temperature of 58…
Magnetic anisotropy of thin sputtered MgB2 films on MgO substrates in high magnetic fields
Savio Fabretti, Inga-Mareen Imort, Timo Kuschel +4
We investigated the magnetic anisotropy ratio of thin sputtered polycrystalline MgB2 films on MgO substrates. Using high magnetic field measurements, we estimated an anisotropy rat…
Spin polarized tunneling in MgO-based tunnel junctions with superconducting electrodes
Oliver Schebaum, Jagadeesh S. Moodera, Andy Thomas
We prepared magnetic tunnel junctions with one ferromagnetic and one superconducting Al-Si electrode. Pure cobalt electrodes were compared with a Co-Fe-B alloy and the Heusler comp…
Fabrication of superconducting MgB2 thin films by magnetron co-sputtering on (001) MgO substrates
Savio Fabretti, Patrick Thomas, Markus Meinert +1
We fabricated superconducting MgB2 thin films on (001) MgO substrates. The samples were prepared by magnetron rf and dc co-sputtering on heated substrates. They were annealed ex-si…