Contact

Dr. Helmut Schultheiß

Group Leader
Spin: Interaction and Control
Spin interaction and control
h.schultheissAthzdr.de
Phone: +49 351 260 3243

Spin: Interaction and Control

Dr. Helmut Schultheiß

Magnonincs bridge

Within this project we investigate the fundamental connections between spin waves, spin polarized electrons and photons, combining the three recently emerged research directions of magnonics, spintronics and photonics. This research is driven by the demand for new concepts, technologies and materials for information processing since, on one side, electronics is reaching its physical limit of speed due to waste heat generation and, on the other side, photonics lacks fast, electronic control on small length scales. Spin waves, being the fundamental dynamic excitations of ferromagnets with frequencies in the gigahertz to terahertz regime, offer the unique opportunity to merge the best aspects of spintronics and photonics opening new pathways for information processing. You can find a more detailed overview of our current research topics here.

Our methods cover for example time- and phase-resolved Brillouin light scattering microscopy (TR-µBLS), time-resolved magneto-optical Kerr microscopy (TR-µMOKE), a femtosecond-laser system, electrical detection via the (inverse) spin Hall effect (ISHE) as well as micromagnetic simulation.

Joining our group

Group Foto Magnonics ©Copyright: Dr. Schultheiß, Helmut

Group Foto Magnonics

Foto: Helmut Schultheiß

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If you are interested in joining our group (i.e. for a Bachelor, Master or PhD Thesis, as a research assistant or postdoc) see our open positions section for possible topics or directly contact Dr. Helmut Schultheiß. Exemplary topics are:

Interaction of spin waves and spin polarized currents

Using the spin degree of electrons and coherent transport of spin information is one of the grand challenges of condensed matter physics. Spin wave, which are also called magnons, are the fundamental exciation quanta of a ferromagnet and can interact with spin polarized currents. This interaction can be studied on a nanometer lengthscale using magneto-optical techniques such as Kerr-effect and Brillouin light scattering microscopy as well as electrical measurements based on the (inverse) spin Hall effect.

Magnon-Qubit Hybrid Systems

The frequency range of magnons in metallic ferromagnets perfectly matches the energy gap of varios crytal defects in diamond or SiC crystals. These defects host electronic states within the bandgap and thus are ideal two-level systems for studying quantum phenomena. We experimentally demonstrate a frequency downconversion of the applied microwave excitation which allows a pure-magnonic control of the spin qubit at previously inaccessible frequencies. Our results open new avenues for developing scalable hybrid quantum technologies while offering a testbed for exploring the convergence of nonlinear, threshold-activated systems with intrinsically linear quantum sys- tems.

Recent publications

See a full list here.

2023

Modification of three-magnon splitting in a flexed magnetic vortex

Körber, L.; Heins, C.; Soldatov, I.; Schäfer, R.; Kakay, A.; Schultheiß, H.; Schultheiß, K.

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2022

Roadmap on Spin-Wave Computing

Chumak, A. V.; Kabos, P.; Wu, M.; et al.; Schultheiß, H.; Schultheiß, K.

Quantifying the Dzyaloshinkii-Moriya Interaction Induced by the Bulk Magnetic Asymmetry

Zhang, Q.; Liang, J.; Bi, K.; Zhao, L.; Bai, H.; Cui, Q.; Zhou, H.-A.; Bai, H.; Feng, H.; Song, W.; Chai, G.; Gladii, O.; Schultheiß, H.; Zhu, T.; Zhang, J.; Peng, Y.; Yang, H.; Jiang, W.

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Spin-wave frequency combs

Hula, T.; Schultheiß, K.; Trindade Goncalves, F. J.; Körber, L.; Bejarano, M.; Copus, M.; Flacke, L.; Liensberger, L.; Buzdakov, A.; Kakay, A.; Weiler, M.; Camley, R.; Faßbender, J.; Schultheiß, H.

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2021

Symmetry and curvature effects on spin waves in vortex-state hexagonal nanotubes

Körber, L.; Zimmermann, M.; Wintz, S.; Finizio, S.; Kronseder, M.; Bougeard, D.; Dirnberger, F.; Weigand, M.; Raabe, J.; Otálora, J. A.; Schultheiß, H.; Josten, E.; Lindner, J.; Kézsmárki, I.; Back, C. H.; Kakay, A.

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Reconfigurable Spin-Wave Interferometer at the Nanoscale

Chen, J.; Wang, H.; Hula, T.; Liu, C.; Liu, S.; Liu, T.; Jia, H.; Song, Q.; Guo, C.; Zhang, Y.; Zhang, J.; Han, X.; Yu, D.; Wu, M.; Schultheiß, H.; Yu, H.

Nonreciprocity of spin waves in magnetic nanotubes with helical equilibrium magnetization

Salazar-Cardona, M. M.; Körber, L.; Schultheiß, H.; Lenz, K.; Thomas, A.; Nielsch, K.; Kakay, A.; Otálora, J. A.

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Agility of spin Hall nano-oscillators

Trindade Goncalves, F. J.; Hache, T.; Bejarano, M.; Hula, T.; Hellwig, O.; Faßbender, J.; Schultheiß, H.

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Theory of three-magnon interaction in a vortex-state magnetic nanodot

Verba, R.; Körber, L.; Schultheiß, K.; Schultheiß, H.; Tiberkevich, V.; Slavin, A.

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The 2021 Magnonics Roadmap

Barman, A.; Gubbiotti, G.; Ladak, S.; Adeyeye, A. O.; Krawczyk, M.; Gräfe, J.; Chumak, A. V.; Khitun, A.; Nikonev, D.; Young, I. A.; Vasyuchka, V. I.; Hillebrands, B.; Nikitov, S. A.; Yu, H.; Grundler, D.; Sadovnikov, A. V.; Grachev, A. A.; Sheshukova, S. E.; Duquesne, J.-Y.; Marangolo, M.; Csaba, G.; Porod, W.; Demidov, V. E.; Urazhdin, S.; Demokritov, S. O.; Albisetti, E.; Petti, D.; Bertacco, R.; Schultheiß, H.; Kruglyak, V. V.; Poimanov, V. D.; Sahoo, S.; Sinha, J.; Moriyama, T.; Mizukami, S.; Yang, H.; Münzenburg, M.; Landeros, P.; Gallardo, R. A.; Carlotti, G.; Kim, J.-V.; Stamps, R. L.; Camley, R. E.; Rana, B.; Otani, Y.; Yu, W.; Yu, T.; Bauer, G. E. W.; Back, C.; Uhrig, G. S.; Dobrovolskiy, O. V.; van Dijken, S.; Budinska, B.; Qin, H.; Adelmann, C.; Cotofana, S.; Naeemi, A.; Zingsem, B. W.; Winklhofer, M.

Frequency- and magnetic-field-dependent properties of ordered magnetic nanoparticle arrangements

Neugebauer, N.; Hache, T.; Elm, M. T.; Hofmann, D. M.; Heiliger, C.; Schultheiß, H.; Klar, P. J.

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Magnetic texture based magnonics

Yu, H.; Xiao, J.; Schultheiß, H.

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Time refraction of spin waves

Schultheiß, K.; Sato, N.; Matthies, P.; Körber, L.; Wagner, K.; Hula, T.; Gladii, O.; Pearson, J. E.; Hoffmann, A.; Helm, M.; Faßbender, J.; Schultheiß, H.

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Mapping the stray fields of a micromagnet using spin centers in SiC

Bejarano, M.; Trindade Goncalves, F. J.; Hollenbach, M.; Hache, T.; Hula, T.; Berencen, Y.; Faßbender, J.; Helm, M.; Astakhov, G.; Schultheiß, H.

Related publications

  • Open Access Logo IEEE Magnetics Letters 12(2021), 9380379
    Cited 1 times in Scopus
  • Poster (Online presentation)
    Magnetism and Magnetic Materials Conference 2020 (MMM2020), 02.-06.11.2020, Online, United States
  • Open Access Logo Poster (Online presentation)
    Around-the-Clock Around-the-Globe Magnetics Conference, 24.08.2021, Online, Online
  • Open Access Logo Poster (Online presentation)
    SKM DPG 2021, 27.09.-01.10.2021, Online, Online
  • Open Access Logo Poster (Online presentation)
    Summer School Dresden Microelectronics Academy 2021, 20.-24.09.2021, Online, Online

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Bipolar spin Hall nano-oscillators

Hache, T.; Li, Y.; Weinhold, T.; Scheumann, B.; Trindade Goncalves, F. J.; Hellwig, O.; Faßbender, J.; Schultheiß, H.

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  • Open Access Logo Applied Physics Letters 116(2020), 192405
    Cited 8 times in Scopus
  • Open Access Logo Lecture (Conference) (Online presentation)
    65th Annual Conference on Magnetism and Magnetic Materials (MMM 2020), 02.-06.11.2020, virtual conference, virtual conference
  • Open Access Logo Contribution to WWW
    arXiv:2003.11776 [physics.app-ph]: https://arxiv.org/abs/2003.11776
  • Open Access Logo Poster (Online presentation)
    The 2021 Around-the-Clock Around-the-Globe Magnetics Conference, 24.08.2021, global, global
  • Open Access Logo Poster (Online presentation)
    84. Annual Meeting of DPG and DPG-Tagung (DPG Meeting) of the Condensed Matter Section (SKM), 27.09.-01.10.2021, Deutschland, Deutschland

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2020

Propagation of spin waves through a Néel domain wall

Wojewoda, O.; Hula, T.; Flajšman, L.; Vaňatka, M.; Gloss, J.; Holobrádek, J.; Staňo, M.; Stienen, S.; Körber, L.; Schultheiß, K.; Schmid, M.; Schultheiß, H.; Urbánek, M.

Zero-field propagation of spin waves in waveguides prepared by focused ion beam direct writing

Flajšman, L.; Wagner, K.; Vaňatka, M.; Gloss, J.; Křižáková, V.; Schmid, M.; Schultheiß, H.; Urbánek, M.

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Nonlocal stimulation of three-magnon splitting in a magnetic vortex

Körber, L.; Schultheiß, K.; Hula, T.; Verba, R.; Faßbender, J.; Kakay, A.; Schultheiß, H.

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Nonlinear losses in magnon transport due to four-magnon scattering

Hula, T.; Schultheiß, K.; Buzdakov, A.; Körber, L.; Bejarano, M.; Flacke, L.; Liensberger, L.; Weiler, M.; Shaw, J. M.; Nembach, H. T.; Faßbender, J.; Schultheiß, H.

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Freestanding and positionable microwave-antenna device for magneto-optical spectroscopy experiments

Hache, T.; Vaňatka, M.; Flajšman, L.; Weinhold, T.; Hula, T.; Ciubotariu, O.; Albrecht, M.; Arkook, B.; Barsukov, I.; Fallarino, L.; Hellwig, O.; Faßbender, J.; Urbánek, M.; Schultheiß, H.

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Domain wall-based spin-Hall nano-oscillators

Sato, N.; Schultheiß, K.; Körber, L.; Puwenberg, N.; Mühl, T.; Awad, A. A.; Arekapudi, S. S. P. K.; Hellwig, O.; Faßbender, J.; Schultheiß, H.

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2019

Imaging and writing magnetic domains in the non-collinear antiferromagnet Mn₃Sn

Reichlova, H.; Janda, T.; Godinho, J.; Markou, A.; Kriegner, D.; Schlitz, R.; Zelezny, J.; Soban, Z.; Bejarano, M.; Schultheiß, H.; Nemec, P.; Jungwirth, T.; Felser, C.; Wunderlich, J.; Goennenwein, S.

Magnetization Dynamics of an Individual Single-Crystalline Fe-Filled Carbon Nanotube

Lenz, K.; Narkowicz, R.; Wagner, K.; Reiche, C. F.; Körner, J.; Schneider, T.; Kákay, A.; Schultheiss, H.; Suter, D.; Büchner, B.; Fassbender, J.; Mühl, T.; Lindner, J.

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High spin-wave propagation length consistent with low damping in a metallic ferromagnet

Flacke, L.; Liensberger, L.; Althammer, M.; Huebl, H.; Geprägs, S.; Schultheiß, K.; Buzdakov, A.; Hula, T.; Schultheiß, H.; Edwards, E. R. J.; Nembach, H. T.; Shaw, J. M.; Gross, R.; Weiler, M.

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Nonlinear ferromagnetic resonance in the presence of 3-magnon scattering in magnetic nanostructures

Slobodianiuk, D. V.; Melkov, G. A.; Schultheiß, K.; Schultheiß, H.; Verba, R. V.

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Combined frequency and time domain measurements on injection-locked, constriction-based spin Hall nano-oscillators

Hache, T.; Weinhold, T.; Schultheiss, K.; Stigloher, J.; Vilsmeier, F.; Back, C.; Arekapudi, S. S. P. K.; Hellwig, O.; Fassbender, J.; Schultheiss, H.

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Excitation of whispering gallery magnons in a magnetic vortex

Schultheiss, K.; Verba, R.; Wehrmann, F.; Wagner, K.; Körber, L.; Hula, T.; Hache, T.; Kákay, A.; Awad, A. A.; Tiberkevich, V.; Slavin, A. N.; Fassbender, J.; Schultheiss, H.

Related publications

  • Open Access Logo Physical Review Letters 122(2019), 097202
    Cited 42 times in Scopus
  • Invited lecture (Conferences)
    International Conference on Magnetism, 19.07.2018, San Francisco, USA
  • Invited lecture (Conferences)
    APS March Meeting, 04.03.2019, Boston, USA
  • Poster
    Wilhelm und Else Heraeus-Seminar “Spin Based Information Processing”, 08.01.2019, Bad Honnef, Deutschland
  • Lecture (Conference)
    Joint European Magnetic Symposia (JEMS), 04.09.2018, Mainz, Deutschland
  • Poster
    Magnonics 2019, 28.07.2019, Carovigno, Italien
  • Invited lecture (Conferences)
    Magnetics and Optics Research International Symposium, 24.06.2019, Prague, Czech Republic
  • Invited lecture (Conferences)
    Conference on Magnetism and Magnetic Materials (MMM), 06.11.2019, Las Vegas, USA

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2018

Injection locking of multiple auto-oscillation modes in a tapered nanowire spin Hall oscillator

Wagner, K.; Smith, A.; Hache, T.; Chen, J.-R.; Yang, L.; Montoya, E.; Schultheiss, K.; Lindner, J.; Fassbender, J.; Krivorotov, I.; Schultheiss, H.

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Frequency linewidth and decay length of spin waves in curved magnetic membranes

Otalora, J. A.; Kákay, A.; Lindner, J.; Schultheiss, H.; Thomas, A.; Fassbender, J.; Nielsch, K.

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Interplay between magnetic domain patterning and anisotropic magnetoresistance probed by magnetooptics

Osten, J.; Lenz, K.; Schultheiss, H.; Lindner, J.; McCord, J.; Fassbender, J.

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Contact

Dr. Helmut Schultheiß

Group Leader
Spin: Interaction and Control
Spin interaction and control
h.schultheissAthzdr.de
Phone: +49 351 260 3243