activity
20162023
most citedOptimized Spintronic Terahertz Emitters Based on Epitaxial Grown Fe/Pt Layer Structures

190 citations · 648 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.mtrl-sci2023★ 4 cited

Spin transport and magnetic proximity effect in CoFeB/normal metal/Pt trilayers

Simon Häuser, Matthias R. Schweizer, Sascha Keller +7

We present a study of the damping and spin pumping properties of CoFeB/X/Pt systems with and . We show that the total damping of the CoFeB/Pt systems is stron…

cond-mat.mes-hall2019★ 59 cited

Modification of spintronic terahertz emitter performance through defect engineering

Dennis M. Nenno, Laura Scheuer, Dominik Sokoluk +10

Spintronic ferromagnetic/non-magnetic heterostructures are novel sources for the generation of THz radiation based on spin-to-charge conversion in the layers. The key technological…

cond-mat.mtrl-sci2018★ 34 cited

Separation of the two-magnon scattering contribution to damping for the determination of the spin mixing conductance

Andres Conca, Sascha Keller, Matthias R. Schweizer +2

We present angle dependent measurements of the damping properties of epitaxial Fe layers with MgO, Al and Pt capping layers. Based on the preferential distribution of lattice defec…

physics.app-ph2018★ 78 cited

Efficient Terahertz Generation Using Fe/Pt Spintronic Emitters Pumped at Different Wavelengths

Evangelos Th. Papaioannou, Garik Torosyan, Sascha Keller +6

Recent studies in spintronics have highlighted ultrathin magnetic metallic multilayers as a novel and very promising class of broadband terahertz radiation sources. Such spintronic…

cond-mat.mes-hall2017★ 47 cited

Determination of the spin Hall angle in single-crystalline Pt films from spin pumping experiments

Sascha Keller, Laura Mihalceanu, Matthias R. Schweizer +12

We report on the determination of the spin Hall angle and the identification of the role of the interface roughness for the inverse spin Hall effect (ISHE) in ultra-clean, defect-r…

physics.app-ph2017★ 190 cited

Optimized Spintronic Terahertz Emitters Based on Epitaxial Grown Fe/Pt Layer Structures

Garik Torosyan, Sascha Keller, Laura Scheuer +2

We report on generation of pulsed broadband terahertz radiation utilizing the inverse spin Hall effect in Fe/Pt bilayers on MgO and sapphire substrates. The emitter was optimized w…

cond-mat.mes-hall2017★ 27 cited

Spin-pumping through a varying-thickness MgO interlayer in Fe/Pt system

Laura Mihalceanu, Sascha Keller, Jochen Greser +7

The spin-pumping mechanism is probed through a tunnelling MgO interlayer in Fe/Pt bilayers. We show by ferromagnetic resonance technique and spin-pumping experiments that spin curr…

cond-mat.mes-hall2017★ 41 cited

Relative weight of the inverse spin Hall and spin rectification effects for metallic Py,Fe/Pt and insulating YIG/Pt bilayers estimated by angular dependent spin pumping measurements

Sascha Keller, Jochen Greser, Matthias R. Schweizer +3

We quantify the relative weight of inverse spin Hall and spin rectification effects occurring in RF-sputtered polycrystalline permalloy, molecular beam epitaxy-grown epitaxial iron…

cond-mat.mes-hall2017★ 84 cited

Lack of correlation between the spin mixing conductance and the ISHE-generated voltages in CoFeB/Pt,Ta bilayers

A. Conca, B. Heinz, M. R. Schweizer +3

We investigate spin pumping phenomena in polycrystalline CoFeB/Pt and CoFeB/Ta bilayers and the correlation between the effective spin mixing conductance $g^{\uparrow\downarrow}_{\…

cond-mat.mes-hall2016★ 84 cited

Bose-Einstein Condensation of Quasi-Particles by Rapid Cooling

M. Schneider, T. Brächer, D. Breitbach +18

The fundamental phenomenon of Bose-Einstein Condensation (BEC) has been observed in different systems of real and quasi-particles. The condensation of real particles is achieved th…