TWIST - Topologische Wirbel In SpinTronik

• Antragstellerin: Professorin Dr. Karin Everschor-Sitte
• Fachliche Zuordnung: Theoretische Physik der kondensierten Materie
• Förderung: Förderung von 2016 bis 2024
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 320163632

• Erstellungsjahr: 2025

Zusammenfassung der Projektergebnisse

In meiner Emmy Noether-Forschungsgruppe „TWIST - Topological Whirls In SpinTronics“ erforschten wir die komplexe, fundamentale Physik topologisch geschützter magnetischer Strukturen - Skyrmionen - zusammen mit diversen anderen magnetischen Texturen sowie Spin- und Ladungsströmen mit dem übergreifenden Ziel, neue spintronische Anwendungen voranzutreiben. Unsere Forschung konzentrierte sich auf drei Hauptrichtungen: Materialdesign, effiziente Kontrolle der Eigenschaften von Skyrmionen und Weiterentwicklung von Bauteilen/Geräten. Diese Arbeiten wurden durch das Bestreben untermauert, ein umfassendes Verständnis der grundlegenden Physik und der Mechanismen zu erlangen, die diesen Phänomenen zugrunde liegen.

Projektbezogene Publikationen (Auswahl)

• Current-driven periodic domain wall creation in ferromagnetic nanowires. Physical Review B, 94(6).
  Sitte, Matthias; Everschor-Sitte, Karin; Valet, Thierry; Rodrigues, Davi R.; Sinova, Jairo & Abanov, Ar.
  
• New Boundary-Driven Twist States in Systems with Broken Spatial Inversion Symmetry. Physical Review Letters, 119(12).
  Hals, Kjetil M. D. & Everschor-Sitte, Karin
  
• Skyrmion production on demand by homogeneous DC currents. New Journal of Physics, 19(9), 092001.
  Everschor-Sitte, Karin; Sitte, Matthias; Valet, Thierry; Abanov, Artem & Sinova, Jairo
  
• Spin texture motion in antiferromagnetic and ferromagnetic nanowires. Physical Review B, 95(17).
  Rodrigues, Davi R.; Everschor-Sitte, Karin; Tretiakov, Oleg A.; Sinova, Jairo & Abanov, Ar.
  
• Unidirectional Magnon-Driven Domain Wall Motion Due to the Interfacial Dzyaloshinskii-Moriya Interaction. Physical Review Letters, 122(14).
  Kim, Kyoung-Whan; Lee, Seo-Won; Moon, Jung-Hwan; Go, Gyungchoon; Manchon, Aurélien; Lee, Hyun-Woo; Everschor-Sitte, Karin & Lee, Kyung-Jin
  
• Asymmetric skyrmion Hall effect in systems with a hybrid Dzyaloshinskii-Moriya interaction. Physical Review B, 97(22).
  Kim, Kyoung-Whan; Moon, Kyoung-Woong; Kerber, Nico; Nothhelfer, Jonas & Everschor-Sitte, Karin
  
• Effect of boundary-induced chirality on magnetic textures in thin films. Physical Review B, 98(6).
  Mulkers, Jeroen; Hals, Kjetil M. D.; Leliaert, Jonathan; Milošević, Milorad V.; Van Waeyenberge, Bartel & Everschor-Sitte, Karin
  
• Effective description of domain wall strings. Physical Review B, 97(13).
  Rodrigues, Davi R.; Abanov, Ar.; Sinova, J. & Everschor-Sitte, K.
  
• Magnetic Skyrmion as a Nonlinear Resistive Element: A Potential Building Block for Reservoir Computing. Physical Review Applied, 9(1).
  Prychynenko, Diana; Sitte, Matthias; Litzius, Kai; Krüger, Benjamin; Bourianoff, George; Kläui, Mathias; Sinova, Jairo & Everschor-Sitte, Karin
  
• Painting and erasing skyrmions. Nature Electronics, 1(5), 266–267.
  Everschor-Sitte, Karin; Sinova, Jairo & Abanov, Artem
  
• Perspective: Magnetic skyrmions—Overview of recent progress in an active research field. Journal of Applied Physics, 124(24).
  Everschor-Sitte, K.; Masell, J.; Reeve, R. M. & Kläui, M.
  
• Physik Journal September (2018), Issue cover figure; K. Everschor-Sitte Let’s twist again
  K. Everschor-Sitte
  
• Potential implementation of reservoir computing models based on magnetic skyrmions. AIP Advances, 8(5).
  Bourianoff, George; Pinna, Daniele; Sitte, Matthias & Everschor-Sitte, Karin
  
• Roles of chiral renormalization on magnetization dynamics in chiral magnets. Physical Review B, 97(10).
  Kim, Kyoung-Whan; Lee, Hyun-Woo; Lee, Kyung-Jin; Everschor-Sitte, Karin; Gomonay, Olena & Sinova, Jairo
  
• Characterizing breathing dynamics of magnetic skyrmions and antiskyrmions within the Hamiltonian formalism. Physical Review B, 99(5).
  McKeever, B. F.; Rodrigues, D. R.; Pinna, D.; Abanov, Ar.; Sinova, Jairo & Everschor-Sitte, K.
  
• Spin eigenexcitations of an antiferromagnetic skyrmion. Physical Review B, 99(18).
  Kravchuk, Volodymyr P.; Gomonay, Olena; Sheka, Denis D.; Rodrigues, Davi R.; Everschor-Sitte, Karin; Sinova, Jairo; van den Brink, Jeroen & Gaididei, Yuri
  
• Thermal skyrmion diffusion used in a reshuffler device. Nature Nanotechnology, 14(7), 658-661.
  Zázvorka, Jakub; Jakobs, Florian; Heinze, Daniel; Keil, Niklas; Kromin, Sascha; Jaiswal, Samridh; Litzius, Kai; Jakob, Gerhard; Virnau, Peter; Pinna, Daniele; Everschor-Sitte, Karin; Rózsa, Levente; Donges, Andreas; Nowak, Ulrich & Kläui, Mathias
  
• Topological Characterization of Classical Waves: The Topological Origin of Magnetostatic Surface Spin Waves. Physical Review Letters, 122(21).
  Yamamoto, Kei; Thiang, Guo Chuan; Pirro, Philipp; Kim, Kyoung-Whan; Everschor-Sitte, Karin & Saitoh, Eiji
  
• Twists in ferromagnetic monolayers with trigonal prismatic symmetry. Physical Review B, 99(10).
  Hals, Kjetil M. D. & Everschor-Sitte, Karin
  
• Berry curvature for magnetoelastic waves. Physical Review B, 101(6).
  Okamoto, Akihiro; Murakami, Shuichi & Everschor-Sitte, Karin
  
• Chiral excitations of magnetic droplet solitons driven by their own inertia. Physical Review B, 101(2).
  Mohseni, Morteza; Rodrigues, D. R.; Saghafi, M.; Chung, S.; Ahlberg, M.; Yazdi, H. F.; Wang, Q.; Banuazizi, S. A. H.; Pirro, P.; Åkerman, J. & Mohseni, Majid
  
• Facilitating domain wall injection in magnetic nanowires by electrical means. Physical Review B, 101(22).
  Rodrigues, Davi R.; Sommer, Nils & Everschor-Sitte, Karin
  
• Large surface magnetization in noncentrosymmetric antiferromagnets. Physical Review B, 102(18).
  Lund, Mike A.; Everschor-Sitte, Karin & Hals, Kjetil M. D.
  
• Neuromorphic spintronics. Nature Electronics, 3(7), 360-370.
  Grollier, J.; Querlioz, D.; Camsari, K. Y.; Everschor-Sitte, K.; Fukami, S. & Stiles, M. D.
  
• Reservoir Computing with Random Skyrmion Textures. Physical Review Applied, 14(5).
  Pinna, D.; Bourianoff, G. & Everschor-Sitte, K.
  
• Spin-transfer torque driven motion, deformation, and instabilities of magnetic skyrmions at high currents. Physical Review B, 101(21).
  Masell, J.; Rodrigues, D. R.; McKeever, B. F. & Everschor-Sitte, K.
  
• Stability and dynamics of in-plane skyrmions in collinear ferromagnets. Physical Review B, 101(5).
  Zarzuela, Ricardo; Bharadwaj, Venkata Krishna; Kim, Kyoung-Whan; Sinova, Jairo & Everschor-Sitte, Karin
  
• The 2020 magnetism roadmap. Journal of Physics D: Applied Physics, 53(45), 453001.
  Vedmedenko, E. Y.; Kawakami, R. K.; Sheka, D. D.; Gambardella, P.; Kirilyuk, A.; Hirohata, A.; Binek, C.; Chubykalo-Fesenko, O.; Sanvito, S.; Kirby, B. J.; Grollier, J.; Everschor-Sitte, K.; Kampfrath, T.; You, C.-Y. & Berger, A.
  
• The 2020 skyrmionics roadmap. Journal of Physics D: Applied Physics, 53(36), 363001.
  Back, C.; Cros, V.; Ebert, H.; Everschor-Sitte, K.; Fert, A.; Garst, M.; Ma, Tianping; Mankovsky, S.; Monchesky, T. L.; Mostovoy, M.; Nagaosa, N.; Parkin, S. S. P.; Pfleiderer, C.; Reyren, N.; Rosch, A.; Taguchi, Y.; Tokura, Y.; von Bergmann, K. & Zang, Jiadong
  
• The role of temperature and drive current in skyrmion dynamics. Nature Electronics, 3(1), 30–36.
  Litzius, Kai; Leliaert, Jonathan; Bassirian, Pedram; Rodrigues, Davi; Kromin, Sascha; Lemesh, Ivan; Zazvorka, Jakub; Lee, Kyu-Joon; Mulkers, Jeroen; Kerber, Nico; Heinze, Daniel; Keil, Niklas; Reeve, Robert M.; Weigand, Markus; Van Waeyenberge, Bartel; Schütz, Gisela; Everschor-Sitte, Karin; Beach, Geoffrey S. D. & Kläui, Mathias
  
• A deeper look into natural sciences with physics-based and data-driven measures. IScience, 24(3), 102171.
  Rodrigues, Davi Röhe; Everschor-Sitte, Karin; Gerber, Susanne & Horenko, Illia
  
• Current-Induced Dynamics of Chiral Magnetic Structures: Creation, Motion, and Applications. Topics in Applied Physics, 147-181. Springer International Publishing.
  Masell, Jan & Everschor-Sitte, Karin
  
• Current-induced H-shaped-skyrmion creation and their dynamics in the helical phase. Journal of Physics D: Applied Physics, 54(40), 404003.
  Knapman, R.; Rodrigues, D. R.; Masell, J. & Everschor-Sitte, K.
  
• Nonlinear Dynamics of Topological Ferromagnetic Textures for Frequency Multiplication. Physical Review Applied, 16(1).
  Rodrigues, D.R.; Nothhelfer, J.; Mohseni, M.; Knapman, R.; Pirro, P. & Everschor-Sitte, K.
  
• Physik Journal November (2021); Sebastián A. Díaz and K. Everschor-Sitte Der Quanten-Twist (Focus Article, Brennpunktartikel)
  Sebastián A. Díaz & K. Everschor-Sitte
  
• Readout of an antiferromagnetic spintronics system by strong exchange coupling of Mn2Au and Permalloy. Nature Communications, 12(1).
  Bommanaboyena, S. P.; Backes, D.; Veiga, L. S. I.; Dhesi, S. S.; Niu, Y. R.; Sarpi, B.; Denneulin, T.; Kovács, A.; Mashoff, T.; Gomonay, O.; Sinova, J.; Everschor-Sitte, K.; Schönke, D.; Reeve, R. M.; Kläui, M.; Elmers, H.-J. & Jourdan, M.
  
• Reliability of genomic variants across different next-generation sequencing platforms and bioinformatic processing pipelines. BMC Genomics, 22(1).
  Weißbach, Stephan; Sys, Stanislav; Hewel, Charlotte; Todorov, Hristo; Schweiger, Susann; Winter, Jennifer; Pfenninger, Markus; Torkamani, Ali; Evans, Doug; Burger, Joachim; Everschor-Sitte, Karin; May-Simera, Helen Louise & Gerber, Susanne
  
• Scalable computational measures for entropic detection of latent relations and their applications to magnetic imaging. Communications in Applied Mathematics and Computational Science, 16(2), 267–297.
  Horenko, Illia; Rodrigues, Davi; O’Kane, Terence & Everschor-Sitte, Karin
  
• Spin-Wave Driven Bidirectional Domain Wall Motion in Kagome Antiferromagnets. Physical Review Letters, 127(15).
  Rodrigues, D. R.; Salimath, A.; Everschor-Sitte, K. & Hals, K. M. D.
  
• The promise of spintronics for unconventional computing. Journal of Magnetism and Magnetic Materials, 521, 167506.
  Finocchio, Giovanni; Di Ventra, Massimiliano; Camsari, Kerem Y.; Everschor-Sitte, Karin; Khalili Amiri, Pedram & Zeng, Zhongming
  
• Dzyaloshinskii-Moriya induced spin-transfer torques in kagome antiferromagnets. Physical Review B, 105(17).
  Rodrigues, Davi R.; Salimath, Akshaykumar; Everschor-Sitte, Karin & Hals, Kjetil M. D.
  
• Nonzero Skyrmion Hall Effect in Topologically Trivial Structures. Physical Review Applied, 17(6).
  Msiska, Robin; Rodrigues, Davi R.; Leliaert, Jonathan & Everschor-Sitte, Karin
  
• Physik Journal November (2022); D. R. Rodrigues and K. Everschor-Sitte Sein oder Nichtsein? (Focus article, Brennpunktartikel)
  D. R. Rodrigues & K. Everschor-Sitte
  
• Skyrmion pinning energetics in thin film systems. Nature Communications, 13(1).
  Gruber, Raphael; Zázvorka, Jakub; Brems, Maarten A.; Rodrigues, Davi R.; Dohi, Takaaki; Kerber, Nico; Seng, Boris; Vafaee, Mehran; Everschor-Sitte, Karin; Virnau, Peter & Kläui, Mathias
  
• Steering Majorana braiding via skyrmion-vortex pairs: A scalable platform. Physical Review B, 105(22).
  Nothhelfer, Jonas; Díaz, Sebastián A.; Kessler, Stephan; Meng, Tobias; Rizzi, Matteo; Hals, Kjetil M. D. & Everschor-Sitte, Karin
  
• Audio Classification with Skyrmion Reservoirs. Advanced Intelligent Systems, 5(6).
  Msiska, Robin; Love, Jake; Mulkers, Jeroen; Leliaert, Jonathan & Everschor-Sitte, Karin
  
• Higher-order magnetic anisotropy in soft-hard magnetic materials. Physical Review B, 107(4).
  Binh, Nguyen Thanh; Jenkins, Sarah; Ruta, Sergiu; Evans, Richard F. L. & Chantrell, Roy W.
  
• Perspective on unconventional computing using magnetic skyrmions. Applied Physics Letters, 122(26).
  Lee, Oscar; Msiska, Robin; Brems, Maarten A.; Kläui, Mathias; Kurebayashi, Hidekazu & Everschor-Sitte, Karin
  
• Spatial analysis of physical reservoir computers. Physical Review Applied, 20(4).
  Love, Jake; Msiska, Robin; Mulkers, Jeroen; Bourianoff, George; Leliaert, Jonathan & Everschor-Sitte, Karin
  
• The 2022 applied physics by pioneering women: a roadmap. Journal of Physics D: Applied Physics, 56(7), 073001.
  Abad, Begoña; Alberi, Kirstin; Ayers, Katherine E; Badhulika, Sushmee; Ban, Chunmei; Béa, Hélène; Béron, Fanny; Cairney, Julie; Chang, Jane P; Charles, Christine; Creatore, Mariadriana; Dong, Hui; Du, Jia; Egan, Renate; Everschor-Sitte, Karin; Foley, Cathy; Fontcuberta i Morral, Anna; Jung, Myung-Hwa; Kim, Hyunjung ... & Zhao, Yudi
  
• Voltage-Controlled High-Bandwidth Terahertz Oscillators Based on Antiferromagnets. Physical Review Letters, 131(15).
  Lund, Mike A.; Rodrigues, Davi R.; Everschor-Sitte, Karin & Hals, Kjetil M. D.
  
• 3D Magnetic Textures with Mixed Topology: Unlocking the Tunable Hopf Index
  M. Azhar, S. C. Shaju, R. Knapman, A. Pignedoli & K. Everschor-Sitte
  
• Chromatin Capture Upsampling Toolbox - CCUT: A Versatile and unified Framework to Train Your Chromatin Capture Deep Learning Models. openRxiv.
  Sys, Stanislav; Ceron-Noriega, Alejandro; Kerber, Anne; Weißbach, Stephan; Schweiger, Susann; Wand, Michael; Everschor-Sitte, Karin & Gerber, Susanne
  
• Editorial: Focus issue on topological solitons for neuromorphic systems. Neuromorphic Computing and Engineering, 4(1), 010202.
  Meier, Dennis; Íñiguez-González, Jorge; Rodrigues, Davi & Everschor-Sitte, Karin
  
• Manipulating vortices with domain walls in superconductor-ferromagnet heterostructures. Physical Review B, 109(20).
  Díaz, Sebastián A.; Nothhelfer, Jonas; Hals, Kjetil M. D. & Everschor-Sitte, Karin
  
• Mini-Workshop: Mathematics of Entropic AI in the Natural Sciences. Oberwolfach Reports, 21(2), 1041–1068.
  Gerber, Susanne; Horenko, Illia; Klein, Rupert & O’Kane, Terence
  
• NeurIPS 2024, Contribution Nr. 75; K. H. M. Klos, J. Disselhoff, K. Everschor-Sitte, and F. Schmid Reconstructing micro-magnetic vector fields based on topological charge distributions via generative neural network systems
  K. H. M. Klos, J. Disselhoff, K. Everschor-Sitte & F. Schmid
  
• Neuromorphic overparameterisation and few-shot learning in multilayer physical neural networks. Nature Communications, 15(1).
  Stenning, Kilian D.; Gartside, Jack C.; Manneschi, Luca; Cheung, Christopher T. S.; Chen, Tony; Vanstone, Alex; Love, Jake; Holder, Holly; Caravelli, Francesco; Kurebayashi, Hidekazu; Everschor-Sitte, Karin; Vasilaki, Eleni & Branford, Will R.
  
• PRCpy: A Python Package for Processing of Physical Reservoir Computing
  H. Youel, D. Prestwood, O. Lee, T. Wei, K. D. Stenning, J. C. Gartside, W. R. Branford, K. Everschor-Sitte & H. Kurebayashi
  
• Rechnen mit magnetischen Wirbeln. Physik in unserer Zeit, 55(4), 183-189.
  Everschor‐Sitte, Karin; Msiska, Robin & Majumdar, Atreya
  
• Revealing ultrafast domain wall motion in Mn2Au through permalloy capping. Physical Review B 109, 224431.
  Jenkins, Sarah; Wagner, Tobias; Gomonay, Olena & Everschor-Sitte, Karin
  
• Roadmap for unconventional computing with nanotechnology. Nano Futures, 8(1), 012001.
  Finocchio, Giovanni; Incorvia, Jean Anne C.; Friedman, Joseph S.; Yang, Qu; Giordano, Anna; Grollier, Julie; Yang, Hyunsoo; Ciubotaru, Florin; Chumak, Andrii V.; Naeemi, Azad J.; Cotofana, Sorin D.; Tomasello, Riccardo; Panagopoulos, Christos; Carpentieri, Mario; Lin, Peng; Pan, Gang; Yang, J. Joshua; Todri-Sanial, Aida; Boschetto, Gabriele ... & Bandyopadhyay, Supriyo
  
• Screw dislocations in chiral magnets. META 2024: Proceedings of the 14th International Conference on Metamaterials, Photonic Crystals, and Plasmonics
  M. Azhar, S. C. Shaju, V. P. Kravchuk, M. Garst & K. Everschor-Sitte
  
• Spacetime magnetic hopfions from internal excitations and braiding of skyrmions. Communications Physics, 7(1).
  Knapman, Ross; Tausendpfund, Timon; Díaz, Sebastián A. & Everschor-Sitte, Karin
  
• Topological magnetic and ferroelectric systems for reservoir computing. Nature Reviews Physics, 6(7), 455–462.
  Everschor-Sitte, Karin; Majumdar, Atreya; Wolk, Katharina & Meier, Dennis
  
• Numerical Calculation of the Hopf Index for 3D Magnetic Textures
  R. Knapman, M. Azhar, A. Pignedoli, L. Gallard, R. Hertel, J. Leliaert & K. Everschor-Sitte