Publications (10)
Increased Gilbert damping in Yttrium Iron Garnet by low temperature vacuum annealing
D. M. Cheshire, D. Backes, L. Ishibe Veiga +2
The effect of thermal surface cleaning on the Gilbert damping, , of yttrium iron garnet (YIG), before capping with a metallic layer, has been investigated. Our results show tha…
X-Ray Detection of Transient Magnetic Moments Induced by a Spin Current in Cu
R. Kukreja, S. Bonetti, Z. Chen +7
We have used a MHz lock-in x-ray spectro-microscopy technique to directly detect changes of magnetic moments in Cu due to spin injection from an adjacent Co layer. The elemental an…
Direct Observation of Large Amplitude Spin Excitations Localized in a Spin-Transfer Nanocontact
D. Backes, F. MaciÃ, S. Bonetti +3
We report the direct observation of large amplitude spin-excitations localized in a spin-transfer nanocontact using scanning transmission x-ray microscopy. Experiments were conduct…
Long-lived non-equilibrium superconductivity in a non-centrosymmetric Rashba semiconductor
V. Narayan, P. C. Verpoort, J. R. A. Dann +8
We report non-equilibrium magnetodynamics in the Rashba-superconductor GeTe, which lacks inversion symmetry in the bulk. We find that at low temperature the system exhibits a non-e…
Disentangling surface and bulk transport in topological-insulator - junctions
D. Backes, D. Huang, R. Mansell +7
By combining -type and -type topological insulators, vertically stacked - junctions can be formed, allowing to position the Ferm…
Domain-wall depinning assisted by pure spin currents
D. Ilgaz, J. Nievendick, L. Heyne +11
We study the depinning of domain walls by pure diffusive spin currents in a nonlocal spin valve structure based on two ferromagnetic permalloy elements with copper as the nonmagnet…
Robust Kagome Electronic Structure in Topological Quantum Magnets XMn6Sn6 (X = Dy, Tb, Gd, Y)
X. Gu, C. Chen, W. S. Wei +24
Crystal geometry can greatly influence the emergent properties of quantum materials. As an example, the kagome lattice is an ideal platform to study the rich interplay between topo…
Direct observation and imaging of a spin-wave soliton with like symmetry
S. Bonetti, R. Kukreja, Z. Chen +12
The prediction and realization of magnetic excitations driven by electrical currents via the spin transfer torque effect, enables novel magnetic nano-devices where spin-waves can b…
Readout of a antiferromagnetic spintronics systems by strong exchange coupling of Mn2Au and Permalloy
S. P. Bommanaboyena, D. Backes, L. S. I. Veiga +14
In antiferromagnetic spintronics, the read-out of the staggered magnetization or Neel vector is the key obstacle to harnessing the ultra-fast dynamics and stability of antiferromag…
X-ray Magnetic Circular Dichroism in Altermagnetic -MnTe
A. Hariki, A. Dal Din, O. J. Amin +14
Altermagnetism is a recently identified magnetic symmetry class combining characteristics of conventional collinear ferromagnets and antiferromagnets, that were regarded as mutuall…