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Sökning: onr:"swepub:oai:DiVA.org:kth-231198" > Experimental observ...

Experimental observation of chiral magnetic bobbers in B20-type FeGe

Zheng, Fengshan (författare)
Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, Julich, Germany.;Forschungszentrum Julich, Peter Grunberg Inst, Julich, Germany.
Rybakov, Filipp N. (författare)
KTH,Statistisk fysik,Russian Acad Sci, Ural Branch, MN Miheev Inst Met Phys, Ekaterinburg, Russia.;Ural Fed Univ, Ekaterinburg, Russia.
Borisov, Aleksandr B. (författare)
Russian Acad Sci, Ural Branch, MN Miheev Inst Met Phys, Ekaterinburg, Russia.;Ural Fed Univ, Ekaterinburg, Russia.
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Song, Dongsheng (författare)
Tsinghua Univ, Natl Ctr Electron Microscopy Beijing, Sch Mat Sci & Engn, Beijing, Peoples R China.
Wang, Shasha (författare)
Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei, Anhui, Peoples R China.;Univ Sci & Technol China, Chinese Acad Sci, Hefei, Anhui, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing, Jiangsu, Peoples R China.
Li, Zi-An (författare)
Chinese Acad Sci, Inst Phys, Beijing, Peoples R China.
Du, Haifeng (författare)
Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei, Anhui, Peoples R China.;Univ Sci & Technol China, Chinese Acad Sci, Hefei, Anhui, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing, Jiangsu, Peoples R China.
Kiselev, Nikolai S. (författare)
Forschungszentrum Julich, Peter Grunberg Inst & Inst Adv Simulat, Julich, Germany.;JARA, Julich, Germany.
Caron, Jan (författare)
Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, Julich, Germany.;Forschungszentrum Julich, Peter Grunberg Inst, Julich, Germany.
Kovacs, Andras (författare)
Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, Julich, Germany.;Forschungszentrum Julich, Peter Grunberg Inst, Julich, Germany.
Tian, Mingliang (författare)
Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei, Anhui, Peoples R China.;Univ Sci & Technol China, Chinese Acad Sci, Hefei, Anhui, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing, Jiangsu, Peoples R China.
Zhang, Yuheng (författare)
Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei, Anhui, Peoples R China.;Univ Sci & Technol China, Chinese Acad Sci, Hefei, Anhui, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing, Jiangsu, Peoples R China.
Bluegel, Stefan (författare)
Forschungszentrum Julich, Peter Grunberg Inst & Inst Adv Simulat, Julich, Germany.;JARA, Julich, Germany.
Dunin-Borkowski, Rafal E. (författare)
Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, Julich, Germany.;Forschungszentrum Julich, Peter Grunberg Inst, Julich, Germany.
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Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, Julich, Germany;Forschungszentrum Julich, Peter Grunberg Inst, Julich, Germany. Statistisk fysik (creator_code:org_t)
2018-04-09
2018
Engelska.
Ingår i: Nature Nanotechnology. - : NATURE PUBLISHING GROUP. - 1748-3387 .- 1748-3395. ; 13:6, s. 451-
Relaterad länk:
https://elar.urfu.ru...
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https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Chiral magnetic skyrmions(1,2) are nanoscale vortex-like spin textures that form in the presence of an applied magnetic field in ferromagnets that support the Dzyaloshinskii-Moriya interaction (DMI) because of strong spin-orbit coupling and broken inversion symmetry of the crystal(3,4). In sharp contrast to other systems(5,6) that allow for the formation of a variety of two-dimensional (2D) skyrmions, in chiral magnets the presence of the DMI commonly prevents the stability and coexistence of topological excitations of different types(7). Recently, a new type of localized particle-like object-the chiral bobber (ChB)-was predicted theoretically in such materials(8). However, its existence has not yet been verified experimentally. Here, we report the direct observation of ChBs in thin films of B20-type FeGe by means of quantitative off-axis electron holography (EH). We identify the part of the temperature-magnetic field phase diagram in which ChBs exist and distinguish two mechanisms for their nucleation. Furthermore, we show that ChBs are able to coexist with skyrmions over a wide range of parameters, which suggests their possible practical applications in novel magnetic solid-state memory devices, in which a stream of binary data bits can be encoded by a sequence of skyrmions and bobbers.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

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