ferromagnetic materials; microwave spectroscopy; magnetization dynamics; spin waves; superparamagnetic ; magnonics; two-photon lithography; DNA nanotechnology; spintronics; DNA origami; atomic layer deposition
Chumak A. V., Kabos P., Wu M., Abert C., Adelmann C., Adeyeye A. O., Akerman J., Aliev F. G., Anane A., Awad A., Back C. H., Barman A., Bauer G. E. W., Becherer M., Beginin E. N., Bittencourt V. A. S. V., Blanter Y. M., Bortolotti P., Boventer I., Bozhko D. A., Bunyaev S. A., Carmiggelt J. J., Cheenikundil R. R., Ciubotaru F., Grundler D., et al. (2022), Advances in Magnetics Roadmap on Spin-Wave Computing, in IEEE Transactions on Magnetics
, 58(6), 1-72.
Giordano Maria Carmen, Escobar Steinvall Simon, Watanabe Sho, Fontcuberta i Morral Anna, Grundler Dirk (2021), Ni 80 Fe 20 nanotubes with optimized spintronic functionalities prepared by atomic layer deposition, in Nanoscale
Ni 80 Fe 20 nanotubes with optimized spintronic functionalities prepared by atomic layer deposition
||Giordano, Maria Carmen; Escobar Steinvall, Simon; Watanabe, Sho; Fontcuberta i Morral, Anna; Grundler, Dirk
|Persistent Identifier (PID)
Raw data associated to the manuscript "Ni80Fe20 nanotubes with optimized spintronic functionalities prepared by atomic layer deposition". Journal: Nanoscale, 2021 ; DOI: https://doi.org/10.1039/D1NR02291A .For plotting and data evaluation Excell and Origin 2008b were used. Funding by SNF via grants 163016, BSCGI0_157705, NCCR QSIT and 197360 is gratefully acknowledged.
The understanding and control of collective spin excitations (magnons) in materials which display spontaneous magnetic order have advanced considerably during the last decade. This was achieved via optimized synthesis techniques for magnetic multilayers and planar nanostructures, advancements in theory and micromagnetic modelling as well as state-of-the-art magnetic imaging which combines high spatial and temporal resolution. These recent achievements lend support to concepts developed in magnonics which promise energy-efficient wave-based logic and high-speed data processing in integrated chips. The magnons allow for clock frequencies from the GHz to the THz frequency regime. But key challenges remain concerning (i) the miniaturization of magnonic devices, (ii) the non-volatile storage of magnon-based computational results and (iii) the enhancement of integration density. In this proposal we plan to address these key challenges in that we (i) use a bottom-up nanotechnology based on DNA-assembly to create magnonic devices which are miniaturized on so far unexplored microscopic length scales, (ii) study the non-linear interaction between propagating magnons and nanomagnets to write magnetic memory bits, and (iii) develop further the conformal coating of nanoscaffolds with ferromagnetic metals to investigate magnon spintronics in 3D device architectures. In our studies we will combine materials science and engineering with experimental and computational physics. In particular, we will study and optimize the growth of ferromagnetic thin films on both DNA nanobreadboards and polymer-based 3D nanoscaffolds, apply magnetic force microscopy for magnetic imaging, conduct microwave spectroscopy and inelastic light scattering microscopy for the exploration of magnon band structures and perform magnetoresistance experiments as well as micromagnetic simulations. We expect to contribute to the forefront of magnonics and spintronics research in that (i) we excite magnons with unprecedentedly short wavelengths down to potentially 10 nm and explore coherent effects which so far have not been accessible in integrated magnonic circuits. (ii) We address “in-memory computing” by using magnons and exploring the non-volatile storage of wave-based information in nanomagnets. (iii) We enable interconnected magnetic nanodevices which are no longer planar but are vertically aligned on a substrate. We expect novel properties based on three-dimensional non-collinear spin structures. Our results will have a large scientific, societal and economic impact in that we apply biocompatible DNA nanotechnology and develop a resource-saving preparation method to create functional magnetic devices. They enable beyond von Neumann computing schemes and high-density 3D magnetic device architectures. Our research hence contributes to the societal challenge that consists in creating a platform for energy-efficient information technology which considers environmental compatibility, sustainability and resource savings.