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  • Letter
  • Open Access

Electric current control of helimagnetic chirality from a multidomain state in the helimagnet MnAu2

Yuta Kimoto1, Hidetoshi Masuda1,*, Jun-ichiro Ohe2, Shoya Sakamoto1,3, Takeshi Seki1,3,4, and Yoshinori Onose1,3

  • 1Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • 2Department of Physics, Toho University, Funabashi 274-8510, Japan
  • 3Center for Science and Innovation in Spintronics (CSIS), Core Research Cluster, Tohoku University, Sendai 980-8577, Japan
  • 4International Center for Synchrotron Radiation Innovation Smart, Tohoku University, Sendai 980-8577, Japan

  • *Contact author: hidetoshi.masuda.c8@tohoku.ac.jp
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Phys. Rev. Research 8, L022034 – Published 26 May, 2026

DOI: https://doi.org/10.1103/p8r5-n5lr

Abstract

In this Letter, we study the domain-wall dynamics under electric current in the helimagnet MnAu2. We have found that the threshold electric current of the transition from a multidomain state to a single-chiral domain state in a magnetic field is much lower than that of chirality reversal from a single-chiral domain within certain ranges of temperature and magnetic field. The chirality after the transition depends on whether the magnetic field and electric current were parallel or antiparallel. Numerical calculations based on the Landau-Lifshitz-Gilbert equation reproduced the experimental observations. These results indicate that the domain walls are highly mobile in the helimagnet.

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References (33)

  1. Concepts in Spin Electronics, edited by S. Maekawa (Oxford University Press, 2006).
  2. C. Chappert, A. Fert, and F. N. Van Dau, The emergence of spin electronics in data storage, Nat. Mater. 6, 813 (2007).
  3. S. Bhatti, R. Sbiaa, A. Hirohata, H. Ohno, S. Fukami, and S. N. Piramanayagam, Spintronics based random access memory: A review, Mater. Today 20, 530 (2017).
  4. A. Fert, R. Ramesh, V. Garcia, F. Casanova, and M. Bibes, Electrical control of magnetism by electric field and current-induced torques, Rev. Mod. Phys. 96, 015005 (2024).
  5. S. S. P. Parkin, M. Hayashi, and L. Thomas, Magnetic domain-wall racetrack memory, Science 320, 190 (2008).
  6. G. Tatara, H. Kohno, and J. Shibata, Microscopic approach to current-driven domain wall dynamics, Phys. Rep. 468, 213 (2008).
  7. D. Kumar, T. Jin, R. Sbiaa, M. Kläui, S. Bedanta, S. Fukami, D. Ravelosona, S.-H. Yang, X. Liu, and S. N. Piramanayagam, Domain wall memory: Physics, materials, and devices, Phys. Rep. 958, 1 (2022).
  8. T. Jungwirth, X. Marti, P. Wadley, and J. Wunderlich, Antiferromagnetic spintronics, Nat. Nanotechnol. 11, 231 (2016).
  9. V. Baltz, A. Manchon, M. Tsoi, T. Moriyama, T. Ono, and Y. Tserkovnyak, Antiferromagnetic spintronics, Rev. Mod. Phys. 90, 015005 (2018).
  10. J. Han, R. Cheng, L. Liu, H. Ohno, and S. Fukami, Coherent antiferromagnetic spintronics, Nat. Mater. 22, 684 (2023).
  11. B. H. Rimmler, B. Pal, and S. S. P. Parkin, Non-collinear antiferromagnetic spintronics, Nat. Rev. Mater. 10, 109 (2025).
  12. P. Wadley, S. Reimers, M. J. Grzybowski, C. Andrews, M. Wang, J. S. Chauhan, B. L. Gallagher, R. P. Campion, K. W. Edmonds, S. S. Dhesi, F. Maccherozzi, V. Novak, J. Wunderlich, and T. Jungwirth, Current polarity-dependent manipulation of antiferromagnetic domains, Nat. Nanotechnol. 13, 362 (2018).
  13. N. Hedrich, K. Wagner, O. V. Pylypovskyi, B. J. Shields, T. Kosub, D. D. Sheka, D. Makarov, and P. Maletinsky, Nanoscale mechanics of antiferromagnetic domain walls, Nat. Phys. 17, 574 (2021).
  14. S. Reimers, Y. Lytvynenko, Y. R. Niu, E. Golias, B. Sarpi, L. S. I. Veiga, T. Denneulin, A. Kovács, R. E. Dunin-Borkowski, J. Bläßer, M. Kläui, and M. Jourdan, Current-driven writing process in antiferromagnetic Mn2Au for memory applications, Nat. Commun. 14, 1861 (2023).
  15. X. Li, C. Collignon, L. Xu, H. Zuo, A. Cavanna, U. Gennser, D. Mailly, B. Fauqué, L. Balents, Z. Zhu, and K. Behnia, Chiral domain walls of Mn3Sn and their memory, Nat. Commun. 10, 3021 (2019).
  16. H. Reichlova, T. Janda, J. Godinho, A. Markou, D. Kriegner, R. Schlitz, J. Zelezny, Z. Soban, M. Bejarano, H. Schultheiss, P. Nemec, T. Jungwirth, C. Felser, J. Wunderlich, and S. T. B. Goennenwein, Imaging and writing magnetic domains in the non-collinear antiferromagnet Mn3Sn, Nat. Commun. 10, 5459 (2019).
  17. S. Sugimoto, Y. Nakatani, Y. Yamane, M. Ikhlas, K. Kondou, M. Kimata, T. Tomita, S. Nakatsuji, and Y. Otani, Electrical nucleation, displacement, and detection of antiferromagnetic domain walls in the chiral antiferromagnet Mn3Sn, Commun. Phys. 3, 111 (2020).
  18. M. Wu, T. Chen, T. Nomoto, Y. Tserkovnyak, H. Isshiki, Y. Nakatani, T. Higo, T. Tomita, K. Kondou, R. Arita, S. Nakatsuji, and Y. Otani, Current-driven fast magnetic octupole domain-wall motion in noncollinear antiferromagnets, Nat. Commun. 15, 4305 (2024).
  19. A. Yoshimori, A new type of antiferromagnetic structure in the rutile type crystal, J. Phys. Soc. Jpn. 14, 807 (1959).
  20. A. Hubert, Theorie der Domänenwände in geordneten Medien (Springer, Berlin, 1974).
  21. P. I. Melnichuk, A. N. Bogdanov, U. K. Rößler, and K. H. Müller, Hubert Model for Modulated States in Systems with Competing Exchange Interactions, J. Magn. Magn. Mater. 248, 142 (2002).
  22. F. Li, T. Nattermann, and V. L. Pokrovsky, Vortex domain walls in helical magnets, Phys. Rev. Lett. 108, 107203 (2012).
  23. N. Jiang, Y. Nii, H. Arisawa, E. Saitoh, and Y. Onose, Electric current control of spin helicity in an itinerant helimagnet, Nat. Commun. 11, 1601 (2020).
  24. H. Masuda, T. Seki, J. Ohe, Y. Nii, H. Masuda, K. Takanashi, and Y. Onose, Room temperature chirality switching and detection in a helimagnetic MnAu2 thin film, Nat. Commun. 15, 1999 (2024).
  25. P. Schoenherr, J. Müller, L. Köhler, A. Rosch, N. Kanazawa, Y. Tokura, M. Garst, and D. Meier, Topological domain walls in helimagnets, Nat. Phys. 14, 465 (2018).
  26. E. O. Hall and J. Royan, The structure of Au2Mn, Acta Cryst. 12, 607 (1959).
  27. A. Herpin and P. Meriel, Étude de l’antiferromagnétisme helicoidal de MnAu2 par diffraction de neutrons, J. Phys. Radium 22, 337 (1961).
  28. H. Masuda, J. I. Ohe, Y. Nii, S. Kimura, and Y. Onose, Critically-enhanced nonreciprocal electronic transport at magnetic phase boundary in a room temperature helimagnet YMn6Sn6, Phys. Rev. Res. 7, 033019 (2025).
  29. H. Masuda, Y. Yanagisawa, K. Ohishi, Y. Nambu, Y. Nii, and Y. Onose, Direct demonstration of electric chirality control in a helimagnetic YMn6Sn6 by spin-polarized neutron scattering, arXiv:2512.05436.
  30. Y. Kimoto, H. Masuda, T. Seki, Y. Nii, J. I. Ohe, Y. Nambu, and Y. Onose, Current-induced sliding motion in a helimagnet MnAu2, Phys. Rev. Lett. 134, 056702 (2025).
  31. See Supplemental Material at http://link.aps.org/supplemental/10.1103/p8r5-n5lr for the differential resistivity and temperature dependence of second-harmonic resistivity ρ2ω, including its variation under current pulses.
  32. J. Ohe and Y. Onose, Chirality control of the spin structure in monoaxial helimagnets by charge current, Appl. Phys. Lett. 118, 042407 (2021).
  33. R. Tomasello, E. Martinez, R. Zivieri, L. Torres, M. Carpentieri, and G. Finocchio, A strategy for the design of skyrmion racetrack memories, Sci. Rep. 4, 6784 (2014).

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Phys. Rev. Research 8, L022034– Published 26 May, 2026
  • Received 25 November 2025
  • Accepted 30 March 2026
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