531 citations · 3.7k across the 47 of their papers we have counts for
47 papers
Element-specific and high-bandwidth ferromagnetic resonance spectroscopy with a coherent, extreme ultraviolet (EUV) source
Michael Tanksalvala, Anthony Kos, Jacob Wisser +3
We applied a tabletop, ultrafast, high-harmonic generation (HHG) source to measure the element-specific ferromagnetic resonance (FMR) in ultra-thin magnetic alloys and multilayers…
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…
Engineering of Heterostructure Pt/Co/AlOx for the enhancement of Dyzaloshinskii-Moria interaction
Babu Ram Sankhi, Elena Echeverria, Hans T. Nembach +7
The interfacial Dyzaloshinskii-Moria interaction (DMI) helps to stabilize chiral domain walls and magnetic skyrmions, which will facilitate new magnetic memories and spintronics lo…
Simultaneous measurement of the exchange parameter and saturation magnetization using propagating spin waves
Grant A. Riley, Justin M. Shaw, Thomas J. Silva +1
The exchange interaction in ferromagnetic ultra-thin films is a critical parameter in magnetization-based storage and logic devices, yet the accurate measurement of it remains a ch…
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…
Skyrmions in synthetic antiferromagnets and their nucleation via electrical current and ultrafast laser illumination
Roméo Juge, Naveen Sisodia, Joseba Urrestarazu Larrañaga +24
Magnetic skyrmions are topological spin textures that hold great promise as nanoscale information carriers in non-volatile memory and logic devices. While room-temperature magnetic…
Roadmap on Spin-Wave Computing
A. V. Chumak, P. Kabos, M. Wu +113
Magnonics is a field of science that addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operations in the…
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…
Strong coupling of Fe-Co alloy with ultralow damping to superconducting co-planar waveguide resonators
I. W. Haygood, M. R. Pufall, E. R. J. Edwards +2
We report on the strong coupling between a metallic ferromagnetic Fe75Co25 thin film patterned element and a range of superconducting Nb half-wavelength co-planar waveguide (CPW) r…
Comparison of measured and simulated spin-wave mode spectra of magnetic nanostructures
H. T. Nembach, R. D. McMichael, M. L. Schneider +2
Motivated by the importance of magnetization dynamics in nanomagnets for the development and optimization of magnetic devices and sensors, we measured and modeled spin wave spectra…
Anisotropic skyrmion bubbles in ultra-thin epitaxial AuPt/Co/W films
Lorenzo Camosi, José Peña-Garcia, Olivier Fruchart +7
We studied the symmetry of magnetic properties and the resulting magnetic textures in ultra-thin epitaxial AuPt/Co/W, a model system exhibiting perpendicular magn…
Tuning of the Dzyaloshinskii-Moriya Interaction by He ion irradiation
Hans T. Nembach, Emilie Jué, Kay Poetzger +3
We studied the impact of He irradiation on the Dzyaloshinskii-Moriya interaction (DMI) in Ta/Co20Fe60B20/Pt/MgO samples. We found that irradiation with of 40 keV He ions in…
Nonlinear losses in magnon transport due to four-magnon scattering
Tobias Hula, Katrin Schultheiss, Aleksandr Buzdakov +9
We report on the impact of nonlinear four-magnon scattering on magnon transport in microstructured Co25Fe75 waveguides with low magnetic damping. We determine the magnon propagatio…
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…
Tuning interfacial Dzyaloshinskii-Moriya interactions in thin amorphous ferrimagnetic alloys
Y. Quessab, J. -W. Xu, C. T. Ma +6
Skyrmions can be stabilized in magnetic systems with broken inversion symmetry and chiral interactions, such as Dzyaloshinskii-Moriya interactions (DMI). Further, compensation of m…
Correlation between the Dzyaloshinskii-Moriya interaction and the orbital angular momentum at an oxide / ferromagnet interface
Hans T. Nembach, Emilie Jué, Eric R. Evarts +1
We report on the Dzyaloshinskii-Moriya (DMI) interaction at the interface between a ferromagnet and an oxide. We demonstrate experimentally that oxides can give rise to DMI. By com…
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…
Near-Unity Spin Hall Ratio in NiCu Alloys
Mark W. Keller, Katy S. Gerace, Monika Arora +3
We report a large spin Hall effect in the 3 transition metal alloy NiCu for , detected via the ferromagnetic resonance of a Permalloy…
High Spin-Wave Propagation Length Consistent with Low Damping in a Metallic Ferromagnet
Luis Flacke, Lukas Liensberger, Matthias Althammer +11
We report ultra-low intrinsic magnetic damping in CoFe heterostructures, reaching the low regime at room temperature. By using a broadband fer…
Inhomogeneous magnon scattering during ultrafast demagnetization
R. Knut, E. K. Delczeg-Czirjak, S. Jana +20
NiFe (Py) and Py alloyed with Cu exhibit intriguing ultrafast demagnetization behavior, where the Ni magnetic moment shows a delayed response relative to the Fe, an…
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…
Disentangling factors governing Dzyaloshinskii domain wall creep in Co/Ni thin films using PtIr seedlayers
Derek Lau, James Price Pellegren, Hans Nembach +2
We characterize asymmetric growth of magnetic bubble domains in perpendicularly magnetized Co/Ni multi-layers grown on PtIr seedlayers by application of perpendicular a…
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…