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  MnxGa1-x nanodots with high coercivity and perpendicular magnetic anisotropy

Karel, J., Casoli, F., Lupo, P., Celegato, F., Sahoo, R., Ernst, B., et al. (2016). MnxGa1-x nanodots with high coercivity and perpendicular magnetic anisotropy. Applied Surface Science, 387, 1169-1173. doi:10.1016/j.apsusc.2016.07.029.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-B999-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-ACC6-F
Genre: Journal Article

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 Creators:
Karel, J.1, Author              
Casoli, F.2, Author
Lupo, P.2, Author
Celegato, F.2, Author
Sahoo, R.3, Author              
Ernst, B.3, Author              
Tiberto, P.2, Author
Albertini, F.2, Author
Felser, C.4, Author              
Affiliations:
1Julie Karel, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863434              
2External Organizations, ou_persistent22              
3Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: A MnxGa1-x (x=0.70) epitaxial thin film with perpendicular magnetic anisotropy and a large coercivity (mu H-0(c) =1 T) was patterned into nanodots using a combined self-assembly nanolithography and plasma etching procedure. Nanostructuring is achieved by self-assembly of polystyrene nanospheres acting as a mask on the magnetic film. This procedure allows easy patterning of a large area although introduced some chemical disorder, which resulted in a soft magnetic component in the magnetic hysteresis loops. However, chemical order was recovered after vacuum annealing at low temperature. The resulting nanodots retain the properties of the original film, i.e. magnetization oriented perpendicular to the particle and large coercivity. Our results suggest this lithography procedure could be a promising direction for nanostructuring tetragonal Heusler alloys. (C) 2016 Elsevier B.V. All rights reserved.

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Language(s): eng - English
 Dates: 2016-07-052016-07-05
 Publication Status: Published in print
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Title: Applied Surface Science
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 387 Sequence Number: - Start / End Page: 1169 - 1173 Identifier: ISSN: 0169-4332
CoNE: /journals/resource/954928576736