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  Tunable Magnetic Antiskyrmion Size and Helical Period from Nanometers to Micrometers in a D2d Heusler Compound

Ma, T., Sharma, A. K., Saha, R., Srivastava, A. K., Werner, P., Vir, P., Kumar, V., Felser, C., & Parkin, S. S. P. (2020). Tunable Magnetic Antiskyrmion Size and Helical Period from Nanometers to Micrometers in a D2d Heusler Compound. Advanced Materials, pp. 1-7. doi:10.1002/adma.202002043.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0006-89AB-F 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0006-89AE-C
資料種別: 学術論文

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 作成者:
Ma, Tianping1, 著者
Sharma, Ankit K.1, 著者
Saha, Rana1, 著者
Srivastava, Abhay K.1, 著者
Werner, Peter1, 著者
Vir, Praveen2, 著者           
Kumar, Vivek2, 著者           
Felser, Claudia3, 著者           
Parkin, Stuart S. P.1, 著者
所属:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

内容説明

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キーワード: antiskyrmion, D 2d symmetry, Heusler compound, Lorentz transmission electron microscopy, spintronics
 要旨: Skyrmions and antiskyrmions are magnetic nano-objects with distinct chiral, noncollinear spin textures that are found in various magnetic systems with crystal symmetries that give rise to specific Dzyaloshinskii–Moriya exchange vectors. These magnetic nano-objects are associated with closely related helical spin textures that can form in the same material. The skyrmion size and the period of the helix are generally considered as being determined, in large part, by the ratio of the magnitude of the Heisenberg to that of the Dzyaloshinskii–Moriya exchange interaction. In this work, it is shown by real-space magnetic imaging that the helix period λ and the size of the antiskyrmion daSk in the D2d compound Mn1.4PtSn can be systematically tuned by more than an order of magnitude from ≈100 nm to more than 1.1 µm by varying the thickness of the lamella in which they are observed. The chiral spin texture is verified to be preserved even up to micrometer-thick layers. This extreme size tunability is shown to arise from long-range magnetodipolar interactions, which typically play a much less important role for B20 skyrmions. This tunability in size makes antiskyrmions very attractive for technological applications. © 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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言語: eng - English
 日付: 2020-06-022020-06-02
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): DOI: 10.1002/adma.202002043
 学位: -

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出版物 1

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出版物名: Advanced Materials
  その他 : Adv. Mater.
種別: 学術雑誌
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出版社, 出版地: Weinheim : Wiley-VCH
ページ: - 巻号: - 通巻号: 2002043 開始・終了ページ: 1 - 7 識別子(ISBN, ISSN, DOIなど): ISSN: 0935-9648
CoNE: https://pure.mpg.de/cone/journals/resource/954925570855