Spin-orbit torque driven chiral magnetization reversal in ultrathin nanostructures

Critical Fields, X. Zhou, L. Ma, Z. Shi, W. J. Fan, R. F. L. Evans, Jian-Guo Zheng, R. W. Chantrell, S. Mangin, H. W. Zhang, S. M. Zhou, F Freimuth, Stefan Blügel, Yuriy Mokrousov, A Cre, C Lacroix, Mohamed Belmeguenai, Jean-Paul Adam, Yves Roussigne, Sylvain EimerThibaut Devolder, June Seo Joo-Von Kim, Salim Mourad Cherif, Andrey Stashkevich, André Andre Thiaville, Benedikt Schweflinghaus, Emilie Jué, C. K. Safeer, Marc Drouard, Alexandre Lopez, Paul Balint, Liliana D. Buda-Prejbeanu, Olivier Boulle, Stéphane Stephane Auffret, Alain Schuhl, Aurelien Manchon, Ioan Mihai Miron, Gilles Gaudin, A. N. Bogdanov, U. K. Rößler, Hongxin Yang, André Andre Thiaville, Stanislas Rohart, Albert Fert, Mairbek Chshiev, Seonghoon Woo, Kai Litzius, Benjamin Krüger, Mi-young Im, Lucas Caretta, Maxwell Mann, Andrea Krone, Robert Reeve, Markus Weigand, Parnika Agrawal, Peter Fischer, Mathias Kläui, Geoffrey S D Beach, Dong Soo Han, Nam Hui Kim, June Seo Joo-Von Kim, Yuxiang Yin, Jung Woo Koo, Jaehun Cho, Sukmock Lee, Mathias Kläui, Henk J M Swagten, Bert Koopmans, Chun Yeol You, Olivier Boulle, Stanislas Rohart, Liliana D. Buda-Prejbeanu, Emilie Jué, Ioan Mihai Miron, Stefania Pizzini, Jan Vogel, Gilles Gaudin, André Andre Thiaville, Albert Fert, V. Cros, J. Sampaio, Olivier Boulle, Jan Vogel, Hongxin Yang, Stefania Pizzini, Dayane de Souza Chaves, Andrea Locatelli, Tevfik Onur Menteş Alessandro Sala, Liliana D. Buda-Prejbeanu, Olivier Klein, Mohamed Belmeguenai, Yves Roussigné, Andrey Stashkevich, Salim Mourad Chérif, Lucia Aballe, Michael Foerster, Mairbek Chshiev, Stéphane Stephane Auffret, Ioan Mihai Miron, Gilles Gaudin, Vikas Kashid, Timo Schena, Bernd Zimmermann, Yuriy Mokrousov, Stefan Blügel, Vaishali Shah, H. G. Salunke, C. Moreau-Luchaire, C. Moutafis, N. Reyren, J. Sampaio, C. A. F. Vaz, N. Van Horne, K. Bouzehouane, K. Garcia, C. Deranlot, P. Warnicke, P. Wohlhüter, J.-M. George, Markus Weigand, J. Raabe, V. Cros, Albert Fert, Soong Geun Je, Duck Ho Kim, Sang Cheol Yoo, Byoung Chul Min, Kyung Jin Lee, Sug Bong Choe, W. Jiang, Pramey Upadhyaya, W. Zhang, Guoqiang Yu, M. B. Jungfleisch, F. Y. Fradin, J. E. Pearson, Y. Tserkovnyak, Kang L. Wang, O. Heinonen, S. G. E. te Velthuis, A. Hoffmann, Shuai Dong, Kunihiko Yamauchi, Seiji Yunoki, Rong Yu, Shuhua Liang, Adriana Moreo, J. M. Liu, Silvia Picozzi, Elbio Dagotto, K. G. Klimenko, R. N. Zhokhov, Y. Ijiri, T. C. Schulthess, J. A. Borchers, P. J. Van Der Zaag, R. W. Erwin, Guoqiang Yu, Mustafa Akyol, Pramey Upadhyaya, Xiang Li, Congli He, Yabin Fan, Mohammad Montazeri, Juan G Alzate, Murong Lang, Kin L Wong, Pedram Khalili Amiri, Kang L. Wang, Stanislas Rohart, André Andre Thiaville, R. Yanes, J. Jackson, L. Udvardi, L. Szunyogh, U. Nowak, M Schott, A Bernand-Mantel, L Ranno, Stefania Pizzini, Jan Vogel, H Béa, C Baraduc, Stéphane Stephane Auffret, Gilles Gaudin, D Givord, Gong Chen, Tianping Ma, Alpha T N'Diaye, Heeyoung Kwon, Changyeon Won, Yizheng Wu, Andreas K Schmid, A. L. Balk, M. D. Stiles, J. Unguris, Y. Zhou, E. Iacocca, a. a. Awad, R. K. Dumas, F. C. Zhang, H. B. Braun, J. Åkerman, N. Mikuszeit, Olivier Boulle, Ioan Mihai Miron, K. Garello, P. Gambardella, Gilles Gaudin, Liliana D. Buda-Prejbeanu, J H Franken, M Herps, Henk J M Swagten, Bert Koopmans, M. Hälg, W. E A Lorenz, K. Yu Povarov, M. Månsson, Y. Skourski, A. Zheludev, Kwang-Su Ryu, Luc Thomas, See-Hun Yang, Stuart Parkin, J. E. Hirsch, Satoru Emori, Eduardo Martinez, Kyung Jin Lee, Hyun Woo Lee, Uwe Bauer, Sung Min Ahn, Parnika Agrawal, David C. Bono, Geoffrey S D Beach

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

The formation of soap bubbles from thin films is accompanied by topological transitions. Here we show how a magnetic topological structure, a skyrmion bubble, can be generated in a solid-state system in a similar manner. Using an inhomogeneous in-plane current in a system with broken inversion symmetry, we experimentally "blow" magnetic skyrmion bubbles from a geometrical constriction. The presence of a spatially divergent spin-orbit torque gives rise to instabilities of the magnetic domain structures that are reminiscent of Rayleigh-Plateau instabilities in fluid flows. We determine a phase diagram for skyrmion formation and reveal the efficient manipulation of these dynamically created skyrmions, including depinning and motion. The demonstrated current-driven transformation from stripe domains to magnetic skyrmion bubbles could lead to progress in skyrmion-based spintronics.
Original languageEnglish (US)
Number of pages5
JournalPhysical Review Letters
DOIs
StatePublished - 2015

Keywords

  • Dzyaloshinskii-Moriya interaction
  • Humans
  • Magnetite Nanoparticles
  • Magnetite Nanoparticles: chemistry
  • Manganese Compounds
  • Manganese Compounds: chemistry
  • antisymmetric
  • asymmetric hysteresis loop
  • chiral magnet
  • exchange interactions
  • nanomagnetism
  • perpendicular magnetic anisotropy
  • spintronics
  • surface magnetism

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