nanotechnology; ferromagnetic thin films; spin waves; nanomagnetism; magnonics; microwaves
Bhat Vinayak S., Grundler Dirk (2021), Tuning interactions in reconfigurable kagome artificial spin ices for magnonics, in
Appl. Phys. Lett., 119(092403), 092403-1-092403-5.
Watanabe Sho, Bhat Vinayak S., Baumgaertl Korbinian, Hamdi Mohammad, Grundler Dirk (2021), Direct observation of multiband transport in magnonic Penrose quasicrystals via broadband and phase-resolved spectroscopy, in
Science Advances, 7(35), eabg3771-eabg3771.
Baumgaertl Korbinian, Grundler Dirk (2021), Bistable nanomagnet as programmable phase inverter for spin waves, in
Applied Physics Letters, 118(16), 162402-162402.
Barman A, Gubbiotti Gianluca, Ladak Sam, Adeyeye Adekunle Olusola, Krawczyk Maciej, Gräfe Joachim, Adelmann Christoph, Cotofana Sorin, Naeemi Azad, Vasyuchka Vitaliy I, Hillebrands Burkard, Nikitov S A, Yu Haiming, Grundler Dirk, Sadovnikov Alexandr, Grachev Andrew A., Sheshukova S. E., Duquesne Jean-Yves, Marangolo Massimiliano, Gyorgy Csaba, Porod Wolfgang, Demidov V E, Urazhdin Sergei, Demokritov Sergej, et al. (2021), The 2021 Magnonics Roadmap, in
Journal of Physics: Condensed Matter, 1-72.
Träger Nick, Groß Felix, Förster Johannes, Baumgaertl Korbinian, Stoll Hermann, Weigand Markus, Schütz Gisela, Grundler Dirk, Gräfe Joachim (2020), Single shot acquisition of spatially resolved spin wave dispersion relations using X-ray microscopy, in
Scientific Reports, 10(1), 18146-18146.
Che Ping, Baumgaertl Korbinian, Kúkol’ová Anna, Dubs Carsten, Grundler Dirk (2020), Efficient wavelength conversion of exchange magnons below 100 nm by magnetic coplanar waveguides, in
Nature Communications, 11(1), 1445-1445.
Bhat V. S., Watanabe S., Baumgaertl K., Kleibert A., Schoen M. A. W., Vaz C. A. F., Grundler D. (2020), Magnon Modes of Microstates and Microwave-Induced Avalanche in Kagome Artificial Spin Ice with Topological Defects, in
Physical Review Letters, 125(11), 117208-117208.
Baumgaertl Korbinian, Gräfe Joachim, Che Ping, Mucchietto Andrea, Förster Johannes, Träger Nick, Bechtel Michael, Weigand Markus, Schütz Gisela, Grundler Dirk (2020), Nanoimaging of Ultrashort Magnon Emission by Ferromagnetic Grating Couplers at GHz Frequencies, in
Nano Letters, 20(10), 7281-7286.
Giordano Maria Carmen, Baumgaertl Korbinian, Escobar Steinvall Simon, Gay Julien, Vuichard Martin, Fontcuberta i Morral Anna, Grundler Dirk (2020), Plasma-enhanced atomic layer deposition of nickel nanotubes with low resistivity and coherent magnetization dynamics for 3D spintronics, in
ACS Applied Materials & Interfaces, 12(36), 40443-40452.
Xu Mingran, Yamamoto Kei, Puebla Jorge, Baumgaertl Korbinian, Rana Bivas, Miura Katsuya, Takahashi Hiromasa, Grundler Dirk, Maekawa Sadamichi, Otani Yoshichika (2020), Nonreciprocal surface acoustic wave propagation via magneto-rotation coupling, in
Science Advances, 6(32), eabb1724.
Watanabe Sho, Bhat Vinayak S., Baumgaertl Korbinian, Grundler Dirk (2020), Direct Observation of Worm‐Like Nanochannels and Emergent Magnon Motifs in Artificial Ferromagnetic Quasicrystals, in
Adv. Func. Mater., 30, 202001388.
Wang Hanchen, Chen Jilei, Liu Tao, Zhang Jianyu, Baumgaertl Korbinian, Guo Chenyang, Li Yuehui, Liu Chuanpu, Che Ping, Tu Sa, Liu Song, Gao Peng, Han Xiufeng, Yu Dapeng, Wu Mingzhong, Grundler Dirk, Yu Haiming (2020), Chiral Spin-Wave Velocities Induced by All-Garnet Interfacial Dzyaloshinskii-Moriya Interaction in Ultrathin Yttrium Iron Garnet Films, in
Physical Review Letters, 124(2), 027203-027203.
Bhat Vinayak S., Grundler Dirk (2018), Angle-dependent magnetization dynamics with mirror-symmetric excitations in artificial quasicrystalline nanomagnet lattices, in
Phys. Rev. B, 98, 174408-1-174408-5.
Baumgaertl Korbinian, Watanabe Sho, Grundler Dirk (2018), Phase control of spin waves based on a magnetic defect in a one-dimensional magnonic crystal, in
Applied Physics Letters, 112(14), 142405-142405.
Bhat V. S., Heimbach F., Stasinopoulos I., Grundler D. (2017), Angular-dependent magnetization dynamics of kagome artificial spin ice incorporating topological defects, in
Physical Review B, 96(1), 014426-014426.
Phase control of spin waves based on a magnetic defect in a one-dimensional magnonic crystal
| Author |
Baumgaertl, Korbinian; Watanabe, Sho; Grundler, Dirk |
| Publication date |
02.08.2018 |
| Persistent Identifier (PID) |
10.5281/zenodo.1326874 |
| Repository |
zenodo
|
| Abstract |
Raw data associated to the manuscript ‘’Phase control of spin waves based on a magnetic defect in a one-dimensional magnonic crystal‘’, Appl. Phys. Lett. 112, 142405 (2018); doi: 10.1063/1.5024541File formats are described in info.txt files in the concerning folders. For plotting and data evaluation, Python 2.7 and OriginPro 8.6G were used. Example scrips for plotting are provided.
Efficient wavelength conversion of exchange magnons below 100 nm by magnetic coplanar waveguides
| Author |
Che, Ping; Baumgaertl, Korbinian; Kukolova, Anna; Dubs, Carsten; Grundler, Dirk |
| Publication date |
31.01.2020 |
| Persistent Identifier (PID) |
doi.org/10.5281/zenodo.3633075 |
| Repository |
Zenodo
|
| Abstract |
Raw data associated to the manuscript ‘Efficient wavelength conversion of exchange magnons below 100 nm by magnetic coplanar waveguides.” File formats are described in info.txt files in the concerning folders. For plotting and data evaluation, Python 2.7, Matlab 2018b and OriginPro 2018b were used.
| Author |
Watanabe, Sho; Bhat, Vinayak S.; Baumgaertl, Korbinian; Grundler, Dirk |
| Publication date |
17.07.2020 |
| Persistent Identifier (PID) |
http://doi.org/10.5281/zenodo.3949942 |
| Repository |
Zenodo
|
| Abstract |
Raw data associated to the manuscript ‘’Direct Observation of Worm‐Like Nanochannels and Emergent Magnon Motifs in Artificial Ferromagnetic Quasicrystals‘’, Adv. Funct. Mater. 2001388 (2020). (DOI: https://doi.org/10.1002/adfm.202001388)File formats are described in read_me.pdf files in the concerning folders. For plotting and data evaluation, Python 2.7 and OOMMF were used. Example scrips for plotting are provided.
Data files of "Plasma-enhanced atomic layer deposition of nickel nanotubes with low resistivity and coherent magnetization dynamics for 3D spintronics"
| Author |
Giordano, Maria Carmen; Baumgaertl, Korbinian; Escobar Steinvall, Simon; Gay, Julien; Vuichard, Martin; Fontcuberta i Morral, Anna; Grundler, Dirk |
| Publication date |
12.08.2020 |
| Persistent Identifier (PID) |
DOI: 10.5281/zenodo.3980290 |
| Repository |
Zenodo
|
| Abstract |
Raw data associated to the manuscript "Plasma-enhanced atomic layer deposition of nickel nanotubes with low resistivity and coherent magnetization dynamics for 3D spintronics". Journal: ACS Appl. Mater. Interfaces (2020); doi: 10.1021/acsami.0c06879. For plotting and data evaluation Python 2.7, Excell and Origin 2008b were used. Extra information were provided in info.txt files.
Nanoimaging of Ultrashort Magnon Emission by Ferromagnetic Grating Couplers at GHz Frequencies
| Author |
Baumgaertl, Korbinian; Gräfe, Joachim; Che, Ping; Mucchietto, Andrea; Förster, Johannes; Träger, Nick; Bechtel, Michael; Weigand, Markus; Schütz, Gisela; Grundler, Dirk |
| Publication date |
26.08.2020 |
| Persistent Identifier (PID) |
DOI:10.5281/zenodo.4001711 |
| Repository |
Zenodo
|
| Abstract |
Raw data associated to the manuscript “Nanoimaging of Ultrashort Magnon Emission by Ferromagnetic Grating Couplers at GHz Frequencies”, Nano Letters (2020), DOI: https://dx.doi.org/10.1021/acs.nanolett.0c02645Information about file formats and measurement parameters are described in read_me.txt files in the specific folders. For plotting Python 3.7 was used, example scripts are provided.
Magnon Modes of Microstates and Microwave-Induced Avalanche in Kagome Artificial Spin Ice with Topological Defects
| Author |
Watanabe, Sho; Watanabe, Sho; Baumgaertl, Korbinian; Kleibert, Armin; Schoen, Martin; Vaz, Carlos; Grundler, Dirk |
| Publication date |
24.08.2020 |
| Persistent Identifier (PID) |
10.5281/zenodo.3997242 |
| Repository |
Zenodo
|
| Abstract |
The folder contains the dataset for the manuscript entitled "Magnon Modes of Microstates and Microwave-Induced Avalanche in Kagome Artificial Spin Ice with Topological Defects".
| Author |
Baumgaertl, Korbinian; Grundler, Dirk |
| Persistent Identifier (PID) |
https://doi.org/10.5281/zenodo.4680409 |
| Repository |
Zenodo
|
| Abstract |
Raw data associated to the manuscript “Bistable nanomagnet as programable phase inverter for spin waves”, Applied Physics Letters 118, 000000 (2021), DOI: https://doi.org/10.1063/5.0048825Information about file formats and measurement parameters are described in text files in the specific folders. For micromagnetic simulations Mumax 3.10 was used. The simulation scripts (*.mx3 files) and exemplary plotting scripts in Python 3.9 (*.py files) are included.Paper abstract:To realize spin wave logic gates, programable phase inverters are essential. We image using phase-resolved Brillouin light scattering microscopy propagating spin waves in a one-dimensional magnonic crystal consisting of dipolarly coupled magnetic nanostripes. We demonstrate phase shifts upon a single nanostripe of opposed magnetization. Using micromagnetic simulations, we model our experimental finding in a wide parameter space of bias fields and wave vectors. We find that low-loss phase inversion is achieved, when the internal field of the oppositely magnetized nanostripe is tuned such that the latter supports a resonant standing spin wave mode with an odd quantization number at the given frequency. Our results are key for the realization of phase inverters with optimized signal transmission.
Data set
| Author |
Watanabe, Sho; Bhat, Vinayak S.; Baumgaertl, Korbinian; Hamdi, Mohammad; Grundler, Dirk |
| Publication date |
25.08.2021 |
| Persistent Identifier (PID) |
doi:10.5281/zenodo.5146424 |
| Repository |
zenodo
|
| Abstract |
File formats are described in read_me.pdf files in the concerning folders. For plotting and data evaluation, Python 2.7 was used. Example scrips for plotting are provided.
| Author |
Bhat, Vinayak S.; Grundler, Dirk |
| Publication date |
23.08.2021 |
| Persistent Identifier (PID) |
https://doi.org/10.5281/zenodo.5235007 |
| Repository |
Zenodo
|
| Abstract |
The attached folder contains the dataset for the manuscript entitled "Tuning interactions in reconfigurable kagome artificial spin ices for magnonics".The research was supported by the Swiss National Science Foundation via Grant No. 163016. V.S. Bhat acknowledges support from the foundation for Polish Science through the IRA Programme financed by EU within SG OP Programme.
Magnetic nanostructures periodically arranged in one and two dimensions have been shown to provide tailored band structures for spin waves (magnons) which can be reprogrammed via different magnetic states. These so-called reconfigurable magnonic crystals are interesting for advanced wave control in solids. We now want to go one step further and explore (A) reconfigurable magnetic defects in magnonic crystals and (B) spin-wave propagation in artificial ferromagnetic quasicrystals. In the magnonic crystals, we want to understand spin-wave scattering on nanoscale magnetic defects where the gyrotropy of the spin-precessional motion plays the important role. We plan to investigate the transmission and reflection coeffcients depending on SW wavelengths that range from a few µm down to a few 100 nm. For the studies we intend to use nanofabrication, broadband spin-wave spectroscopy using integrated microwave antenna, spatially resolved Brillouin light scattering, magnetic force microscopy and micromagnetic simulations. The results and fundamental understanding will enable reprogrammable spin-wave cavities and three-terminal spin-wave devices. They advance magnonic devices relying on spin-wave control on the nanoscale such as spin-wave logic. For magnetic quasicrystals we will follow the material-by-design approach in that we plan to fabricate artificial ferromagnetic quasicrystals (AFQs) from either interconnected or disconnected nanomagnets. The material-by-design approach using nanofabrication technologies has been conducted for artificial spin ice in recent years consisting of periodic nanomagnet arrays. But correspondingly prepared quasicrystalline structures, i.e., materials that are positionally ordered but exhibit no translational invariance, as considered here are much less investigated. One major advantage of the material-by-design approach is that we can tune both physical parameters of individual nanomagnets (via material, shape and size) and magnetic interactions between them (via different tilings and lateral constants). The interaction can be short (via exchange) and long range (via dipolar interaction). We consider AFQs to form reconfigurable magnonic (quasi)crystals and plan to study spin-wave propagation in different magnetic states. Thereby we will deepen our understanding about the role of aperiodicity on the magnetic properties and collective spin excitations. We will contribute to both the fundamental understanding of the properties of quasicrystalline materials and the research field of magnonics.