179 citations · 439 across the 12 of their papers we have counts for
9 papers · 1 filter
Soft-X-ray momentum microscopy of nonlinear magnon interactions below 100-nm wavelength
Steffen Wittrock, Christopher Klose, Salvatore Perna +10
Magnons are quantised collective excitations of long-range ordered spins. At nanometre wavelengths, exchange interactions increasingly govern their dynamics, giving rise to a large…
Magnon-assisted magnetization reversal of Ni81Fe19 nanostripes on Y3Fe5O12 with different interfaces
Andrea Mucchietto, Korbinian Baumgaertl, Dirk Grundler
Magnetic bit writing by short-wave magnons without conversion to the electrical domain is expected to be a game-changer for in-memory computing architectures. Recently, the reversa…
Magnetization Reversal of 50-nm-wide Ni81Fe19 Nanostripes by Ultrashort Magnons in Yttrium Iron Garnet for Memory-Enhanced Magnonic Circuits
Shreyas S. Joglekar, Korbinian Baumgaertl, Andrea Mucchietto +2
Spin waves (magnons) can enable wave-based neuromorphic computing by which one aims at overcoming limitations inherent to conventional electronics and the von Neumann architecture.…
Nonreciprocal Spin Waves in Nanoscale Domain Walls Detected by Scanning X-ray Microscopy in Perpendicular Magnetic Anisotropic Fe/Gd Multilayers
Ping Che, Axel Deenen, Andrea Mucchietto +10
Spin wave nonreciprocity in domain walls (DWs) allows for unidirectional signal processing in reconfigurable magnonic circuits. Using scanning transmission x-ray microscopy (STXM),…
Reversal of nanomagnets by propagating magnons in ferrimagnetic yttrium iron garnet enabling nonvolatile magnon memory
Korbinian Baumgaertl, Dirk Grundler
Despite the unprecedented downscaling of CMOS integrated circuits, memory-intensive machine learning and artificial intelligence applications are limited by data conversion between…
Spin Dynamics, Loop Formation and Cooperative Reversal in Artificial Quasicrystals with Tailored Exchange Coupling
Vinayak Shantaram Bhat, Sho Watanabe, Florian Kronast +2
Aperiodicity and un-conventional rotational symmetries allow quasicrystalline structures to exhibit unprecedented physical and functional properties. In magnetism, artificial ferro…
Bistable nanomagnet as programmable phase inverter for spin waves
Korbinian Baumgaertl, Dirk Grundler
To realize spin wave logic gates programmable phase inverters are essential. We image with phase-resolved Brillouin light scattering microscopy propagating spin waves in a one-dime…
Nonreciprocal surface acoustic wave propagation via magneto-rotation coupling
Mingran Xu, Kei Yamamoto, Jorge Puebla +7
One of the most fundamental forms of magnon-phonon interaction is an intrinsic property of magnetic materials, the "magnetoelastic coupling". This particular form of interaction ha…
Direct Observation of Magnon Modes in Kagome Artificial Spin Ice with Topological Defects
V. S. Bhat, S. Watanabe, K. Baumgaertl +1
We investigate spin dynamics of artificial spin ice (ASI) where topological defects confine magnon modes in NiFe nanomagnets arranged on an interconnected kagome latt…