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Modern Magnetic Systems Physical Intelligence Article 3D nanoprinted plastic kinoform x-ray optics Sanli, U. T., Ceylan, H., Bykova, I., Weigand, M., Sitti, M., Schütz, G., Keskinbora, K. {Advanced Materials}, 30(36):1802503, Wiley-VCH, Weinheim, 2018 DOI BibTeX
Physical Intelligence Modern Magnetic Systems Article Incorporation of terbium into a microalga leads to magnetotactic swimmers Santomauro, G., Singh, A., Park, B. W., Mohammadrahimi, M., Erkoc, P., Goering, E., Schütz, G., Sitti, M., Bill, J. Advanced Biosystems, 2(12):1800039, 2018 BibTeX
Modern Magnetic Systems Article 3d nanofabrication of high-resolution multilayer Fresnel zone plates Sanli, U. T., Jiao, C., Baluktsian, M., Grévent, C., Hahn, K., Wang, Y., Srot, V., Richter, G., Bykova, I., Weigand, M., Schütz, G., Keskinbora, K. {Advanced Science}, 5(9), Wiley-VCH, Weinheim, 2018 DOI BibTeX
Modern Magnetic Systems Article Assessment methodology of promising porous materials for near ambient temperature hydrogen storage applications Minuto, F. D., Balderas-Xicohténcatl, R., Policicchio, A., Hirscher, M., Agostino, R. G. {International Journal of Hydrogen Energy}, 43(31):14550-14556, Elsevier, Amsterdam, 2018 DOI BibTeX
Modern Magnetic Systems Article Correction of axial position uncertainty and systematic detector errors in ptychographic diffraction imaging Loetgering, L., Rose, M., Keskinbora, K., Baluktsian, M., Dogan, G., Sanli, U., Bykova, I., Weigand, M., Schütz, G., Wilhein, T. {Optical Engineering}, 57(8), The Society, Redondo Beach, Calif., 2018 DOI BibTeX
Modern Magnetic Systems Article Current-induced skyrmion generation through morphological thermal transitions in chiral ferromagnetic heterostructures Lemesh, I., Litzius, K., Böttcher, M., Bassirian, P., Kerber, N., Heinze, D., Zázvorka, J., Büttner, F., Caretta, L., Mann, M., Weigand, M., Finizio, S., Raabe, J., Im, M., Stoll, H., Schütz, G., Dupé, B., Kläui, M., Beach, G. S. D. {Advanced Materials}, 30(49), Wiley-VCH, Weinheim, 2018 DOI BibTeX
Modern Magnetic Systems Article Deterministic creation and deletion of a single magnetic skyrmion observed by direct time-resolved X-ray microscopy Woo, S., Song, K. M., Zhang, X., Ezawa, M., Zhou, Y., Liu, X., Weigand, M., Finizio, S., Raabe, J., Park, M., Lee, K., Choi, J. W., Min, B., Koo, H. C., Chang, J. {Nature Electronics}, 1(5):288-296, Springer Nature, London, 2018 DOI BibTeX
Modern Magnetic Systems Article Direct observation of Zhang-Li torque expansion of magnetic droplet solitons Chung, S., Tuan Le, Q., Ahlberg, M., Awad, A. A., Weigand, M., Bykova, I., Khymyn, R., Dvornik, M., Mazraati, H., Houshang, A., Jiang, S., Nguyen, T. N. A., Goering, E., Schütz, G., Gräfe, J., Åkerman, J. {Physical Review Letters}, 120(21), American Physical Society, Woodbury, N.Y., 2018
Magnetic droplets are nontopological dynamical solitons that can be nucleated in nanocontact based spin torque nano-oscillators (STNOs) with perpendicular magnetic anisotropy free layers. While theory predicts that the droplet should be of the same size as the nanocontact, its inherent drift instability has thwarted attempts at observing it directly using microscopy techniques. Here, we demonstrate highly stable magnetic droplets in all-perpendicular STNOs and present the first detailed droplet images using scanning transmission X-ray microscopy. In contrast to theoretical predictions, we find that the droplet diameter is about twice as large as the nanocontact. By extending the original droplet theory to properly account for the lateral current spread underneath the nanocontact, we show that the large discrepancy primarily arises from current-in-plane Zhang-Li torque adding an outward pressure on the droplet perimeter. Electrical measurements on droplets nucleated using a reversed current in the antiparallel state corroborate this picture.
DOI BibTeX
Modern Magnetic Systems Conference Paper Direct observations of sub-100 nm spin wave propagation in magnonic wave-guides Träger, N., Gruszecki, P., Lisiecki, F., Förster, J., Weigand, M., Kuswik, P., Dubowik, J., Schütz, G., Krawczyk, M., Gräfe, J. In 2018 IEEE International Magnetics Conference (INTERMAG 2018), IEEE, Singapore, 2018 DOI BibTeX
Modern Magnetic Systems Article Dynamic Janus metasurfaces in the visible spectral region Yu, P., Li, J., Zhang, S., Jin, Z., Schütz, G., Qiu, C., Hirscher, M., Liu, N. {Nano Letters}, 18(7):4584-4589, American Chemical Society, Washington, DC, 2018 DOI BibTeX
Modern Magnetic Systems Miscellaneous Emission and propagation of multi-dimensional spin waves in anisotropic spin textures Sluka, V., Schneider, T., Gallardo, R. A., Kakay, A., Weigand, M., Warnatz, T., Mattheis, R., Roldan-Molina, A., Landeros, P., Tiberkevich, V., Slavin, A., Schütz, G., Erbe, A., Deac, A., Lindner, J., Raabe, J., Fassbender, J., Wintz, S. 2018 URL BibTeX
Modern Magnetic Systems Article Ferromagnetism in nitrogen and fluorine substituted BaTiO3 Yoon, S., Son, K., Ebbinghaus, S. G., Widenmeyer, M., Weidenkaff, A. {Journal of Alloys and Compounds}, 749:628-633, Elsevier B.V., Lausanne, Switzerland, 2018 DOI BibTeX
Modern Magnetic Systems Article High volumetric hydrogen storage capacity using interpenetrated metal-organic frameworks Balderas-Xicohténcatl, R., Schmieder, P., Denysenko, D., Volkmer, D., Hirscher, M. {Energy Technology}, 6(3):510-512, Wiley-VCH, Weinheim, 2018 DOI BibTeX
Modern Magnetic Systems Ph.D. Thesis High-Resolution X-ray Ptychography for Magnetic Imaging Bykova, I. Universität Stuttgart, Stuttgart, 2018 DOI URL BibTeX
Modern Magnetic Systems Article High-throughput synthesis of modified Fresnel zone plate arrays via ion beam lithography Keskinbora, K., Sanli, U. T., Baluktsian, M., Grévent, C., Weigand, M., Schütz, G. {Beilstein Journal of Nanotechnology}, 9:2049-2056, Beilstein-Institut, Frankfurt am Main, 2018 DOI BibTeX
Modern Magnetic Systems Master Thesis Interlayer exchange coupling dependent variation of the saturation magnetization of multilayered systems Schulz, F. Universität Stuttgart, Stuttgart, 2018 BibTeX
Modern Magnetic Systems Conference Paper Interpreting FORC diagrams beyond the Preisach model: an experimental permalloy micro array investigation Gross, F., Ilse, S., Schütz, G., Gräfe, J., Goering, E. In 2018 IEEE International Magnetics Conference (INTERMAG 2018), IEEE, Singapore, 2018 DOI BibTeX
Modern Magnetic Systems Article Magnetic skyrmion as a nonlinear resistive element: A potential building block for reservoir computing Prychynenko, D., Sitte, M., Litzius, K., Krüger, B., Bourianoff, G., Kläui, M., Sinova, J., Everschor-Sitte, K. {Physical Review Applied}, 9(1), American Physical Society, College Park, Md. [u.a.], 2018 DOI BibTeX
Modern Magnetic Systems Article New concepts for 3d optics in x-ray microscopy Sanli, U., Ceylan, H., Jiao, C., Baluktsian, M., Grevent, C., Hahn, K., Wang, Y., Srot, V., Richter, G., Bykova, I., Weigand, M., Sitti, M., Schütz, G., Keskinbora, K. {Microscopy and Microanalysis}, 24(Suppl 2):288-289, Cambridge University Press, New York, NY, 2018 DOI BibTeX
Modern Magnetic Systems Article Photocatalytic CO2 reduction by Cr-substituted Ba2(In2-xCrx)O5\mbox⋅(H2O)δ(0.04 ≤x ≤0.60) Yoon, S., Gaul, M., Sharma, S., Son, K., Hagemann, H., Ziegenbalg, D., Schwingenschlogl, U., Widenmeyer, M., Weidenkaff, A. {Solid State Sciences}, 78:22-29, Elsevier Masson SAS, Paris, 2018 DOI BibTeX
Modern Magnetic Systems Article Review of ultrafast demagnetization after femtosecond laser pulses: A complex interaction of light with quantum matter Fähnle, M., Haag, M., Illg, C., Müller, B. Y., Weng, W., Tsatsoulis, T., Huang, H., Briones Paz, J. Z., Teeny, N., Zhang, L., Kuhn, T. {American Journal of Modern Physics}, 7(2):68-74, Science Publishing Group, New York, NY, 2018 DOI BibTeX
Modern Magnetic Systems Article Spin-wave interference in magnetic vortex stacks Behncke, C., Adolff, C. F., Lenzing, N., Hänze, M., Schulte, B., Weigand, M., Schütz, G., Meier, G. {Communications Physics}, 1, Nature Publishing Group, London, 2018 DOI BibTeX
Modern Magnetic Systems Article The role of surface oxides on hydrogen sorption kinetics in titanium thin films Hadjixenophontos, E., Michalek, L., Roussel, M., Hirscher, M., Schmitz, G. {Applied Surface Science}, 441:324-330, Elsevier B.V., Amsterdam, 2018 DOI BibTeX
Modern Magnetic Systems Miscellaneous Thermal skyrmion diffusion applied in probabilistic computing Zázvorka, J., Jakobs, F., Heinze, D., Keil, N., Kromin, S., Jaiswal, S., Litzius, K., Jakob, G., Virnau, P., Pinna, D., Everschor-Sitte, K., Donges, A., Nowak, U., Kläui, M. 2018 URL BibTeX
Modern Magnetic Systems Article Thermodynamics, kinetics and selectivity of H2 and D2 on zeolite 5A below 77K Xiong, R., Balderas-Xicohténcatl, R., Zhang, L., Li, P., Yao, Y., Sang, G., Chen, C., Tang, T., Luo, D., Hirscher, M. {Microporous and Mesoporous Materials}, 264:22-27, Elsevier, Amsterdam, 2018 DOI BibTeX
Modern Magnetic Systems Article Thick permalloy films for the imaging of spin texture dynamics in perpendicularly magnetized systems Finizio, S., Wintz, S., Bracher, D., Kirk, E., Semisalova, A. S., Förster, J., Zeissler, K., We\ssels, T., Weigand, M., Lenz, K., Kleibert, A., Raabe, J. {Physical Review B}, 98(10), American Physical Society, Woodbury, NY, 2018 DOI BibTeX
Modern Magnetic Systems Article Transmission x-ray microscopy at low temperatures: Irregular supercurrent flow at small length scales Simmendinger, J., Ruoss, S., Stahl, C., Weigand, M., Gräfe, J., Schütz, G., Albrecht, J. {Physical Review B}, 97(13), American Physical Society, Woodbury, NY, 2018
Scanning transmission x-ray microscopy has been used to image electric currents in superconducting films at temperatures down to 20 K. We detect significant deviations from a regular current path driven by macroscopic geometrical constraints. The magnetic stray field of supercurrents in a thin YBaCuO film is mapped into a soft-magnetic coating of permalloy. The so-created local magnetization of the ferromagnetic film can be detected by dichroic absorption of polarized x rays. To enable high-quality measurements in transmission geometry, the whole heterostructure of ferromagnet, superconductor, and single-crystalline substrate has been thinned to an overall thickness of less than 1 µm. With this technique, local supercurrents can be analyzed in a wide range of temperatures and magnetic fields. The less than 100 nm spatial resolution of the magnetic signal together with simultaneously obtained nanostructural data allow the correlation of local supercurrents with the micro- and nanostructure of the superconducting film.
DOI BibTeX
Modern Magnetic Systems Article Tunable geometrical frustration in magnoic vortex crystals Behncke, C., Adolff, C. F., Wintz, S., Hänze, M., Schulte, B., Weigand, M., Finizio, S., Raabe, J., Meier, G. {Scientific Reports}, 8, Nature Publishing Group, London, UK, 2018 DOI BibTeX
Modern Magnetic Systems Article Volumetric hydrogen storage capacity in metal-organic frameworks Balderas-Xicohténcatl, R., Schlichtenmayer, M., Hirscher, M. {Energy Technology}, 6(3):578-582, Wiley-VCH, Weinheim, 2018 DOI BibTeX
Modern Magnetic Systems Ph.D. Thesis XMCD investigation at M4,5 edges of the rare earth elements in high-performance permanent magnet Tripathi, S. Universität Stuttgart, Stuttgart, 2018 DOI URL BibTeX
Modern Magnetic Systems Ph.D. Thesis XMCD investigations on new hard magnetic systems Chen, Y. Universität Stuttgart, Stuttgart, 2018 DOI URL BibTeX