383 citations · 1.6k across the 33 of their papers we have counts for
13 papers · 1 filter
Light induced magnetic order
T. Jauk, H. Hampel, J. Walowski +8
Heat and disorder are opponents of magnetism. This fact, expressed in Curie's law established more than a century ago, holds even in the highly non-equilibrium interaction of ultra…
Circular photogalvanic effects in topological insulator/ferromagnet hybrid structures
T. Schumann, T. Kleinke, L. Braun +12
We study laser driven spin-current effects at ferromagnet/topological-insulator interfaces by two complementary experimental approaches. The DC photocurrent is studied in ferromagn…
Observation of multi-skyrmion objects created by size and density control in Ta/CoFeB/MgO films
Christian Denker, Sören Nielsen, Enno Lage +7
Magnetic skyrmions are chiral spin textures with a nontrivial topology that offer a potential for future magnetic memory and storage devices. The controlled formation and adjustmen…
The impact of metallic contacts on spin-polarized photocurrents in topological insulator nanowires
Nina Meyer, Kevin Geishendorf, Jakob Walowski +2
Recently, a new quantum phase, the topological insulator, has been vividly investigated in a variety of materials. Its unique bandstructure allows for optical generation and contro…
Photocurrent measurements in topological insulator nanowires
N. Meyer, K. Geishendorf, J. Walowski +2
Circular photogalvanic currents are a promising new approach for spin-optoelectronics. To date, such currents have only been induced in topological insulator flakes or extended fil…
Spin-current manipulation of photoinduced magnetization dynamics in heavy metal / ferromagnet double layer based nanostructures
Steffen Wittrock, Dennis Meyer, Markus Müller +5
Spin currents offer a way to control static and dynamic magnetic properties, and therefore they are crucial for next-generation MRAM devices or spin-torque oscillators. Manipulatin…