531 citations · 3.5k across the 48 of their papers we have counts for
16 papers · 1 filter
Evidence of extreme domain wall speeds under ultrafast optical excitation
Rahul Jangid, Nanna Zhou Hagström, Meera Madhavi +14
Time-resolved ultrafast EUV magnetic scattering was used to test a recent prediction of >10 km/s domain wall speeds by optically exciting a magnetic sample with a nanoscale labyrin…
Megahertz-rate Ultrafast X-ray Scattering and Holographic Imaging at the European XFEL
Nanna Zhou Hagström, Michael Schneider, Nico Kerber +97
The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers acce…
Symmetry-dependent ultrafast manipulation of nanoscale magnetic domains
Nanna Zhou Hagström, Rahul Jangid, Meera +25
Symmetry is a powerful concept in physics, but its applicability to far-from-equilibrium states is still being understood. Recent attention has focused on how far-from-equilibrium…
Brillouin Light Scattering from Quantized Spin Waves in Nanowires with Antisymmetric Exchange Interactions
Jun-Wen Xu, Grant A. Riley, Justin M. Shaw +2
Antisymmetric exchange interactions lead to non-reciprocal spin-wave propagation. As a result, spin waves confined in a nanostructure are not standing waves; they have a time-depen…
Ultrafast perturbation of magnetic domains by optical pumping in a ferromagnetic multilayer
Dmitriy Zusin, Ezio Iacocca, Loïc Le Guyader +23
Ultrafast optical pumping of spatially nonuniform magnetic textures is known to induce far-from-equilibrium spin transport effects. Here, we use ultrafast x-ray diffraction with un…
Magnetoelasticity of thin films
Daniel Schwienbacher, Matthias Pernpeintner, Lukas Liensberger +6
We investigate the magnetoelastic properties of and thin films by measuring the mechanical properties of a dou…
Domain Wall Motion and Interfacial Dzyaloshinskii-Moriya Interactions in Pt/Co/Ir/Ta Multilayers
Kowsar Shahbazi, Joo-Von Kim, Hans T. Nembach +6
The interfacial Dzyaloshinskii-Moriya interaction (DMI) is important for chiral domain walls (DWs) and for stabilizing magnetic skyrmions. We study the effects of introducing incre…
Magnetic domain texture and the Dzyaloshinskii-Moriya interaction in Pt/Co/IrMn and Pt/Co/FeMn thin films with perpendicular exchange bias
Risalat A. Khan, Hans T. Nembach, Mannan Ali +3
Antiferromagnetic materials present us with rich and exciting physics, which we can exploit to open new avenues in spintronic device applications. We explore perpendicularly magnet…
Determination of spin Hall effect and spin diffusion length of Pt from self-consistent fitting of damping enhancement and inverse spin-orbit torque measurements
Andrew J. Berger, Eric R. J. Edwards, Hans T. Nembach +3
Understanding the evolution of spin-orbit torque (SOT) with increasing heavy-metal thickness in ferromagnet/normal metal (FM/NM) bilayers is critical for the development of magneti…
Suppression of Spin Pumping Between NiFe and Cu by a Graphene Interlayer
Will Gannett, Mark W. Keller, Hans T. Nembach +2
We compare ferromagnetic resonance measurements of Permalloy NiFe (Py) films sputtered onto Cu(111) films with and without a graphene (Gr) interlayer grown by chemica…
Spectroscopic confirmation of linear relation between Heisenberg- and interfacial Dzyaloshinskii-Moriya-exchange in polycrystalline metal films
Hans T. Nembach, Justin M. Shaw, Mathias Weiler +2
Proposals for novel spin-orbitronic logic1 and memory devices2 are often predicated on assumptions as to how materials with large spin-orbit coupling interact with ferromagnets whe…
Detection of the dc inverse spin Hall effect due to spin pumping in a novel meander-stripline geometry
Mathias Weiler, Justin M. Shaw, Hans T. Nembach +1
The dc voltage obtained from the inverse spin Hall effect (iSHE) due to spin pumping in ferromagnet/normal-metal (NM) bilayers can be unintentionally superimposed with magnetoresis…
Spin-Scattering Rates in Metallic Thin Films Measured by Ferromagnetic Resonance Damping Enhanced by Spin-Pumping
C. T. Boone, J. M. Shaw, H. T. Nembach +1
We determined the spin-transport properties of Pd and Pt thin films by measuring the increase in ferromagnetic resonance damping due to spin-pumping in ferromagnetic (FM)-nonferrom…
Phase-sensitive detection of spin pumping via the ac inverse spin Hall effect
Mathias Weiler, Justin M. Shaw, Hans T. Nembach +1
An intriguing feature of spintronics is the use of pure spin-currents to manipulate magnetization, e.g., spin-currents can switch magnetization in spin-torque MRAM, a next-generati…
Precise determination of the spectroscopic g-factor using broadband ferromagnetic resonance spectroscopy
Justin M. Shaw, Hans T. Nembach, T. J. Silva +1
We demonstrate that the spectroscopic g-factor can be determined with high precision and accuracy by broadband ferromagnetic resonance measurements and applying an asymptotic analy…
Mode- and size-dependent Landau-Lifshitz damping in magnetic nanostructures: Evidence for non-local damping
Hans T. Nembach, Justin M. Shaw, Carl T. Boone +1
We demonstrate a strong dependence of the effective damping on the nanomagnet size and the particular spin-wave mode that can be explained by the theory of intralayer transverse-sp…