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  Completely compensated ferrimagnetism and sublattice spin crossing in the half-metallic Heusler compound Mn1.5 FeV0.5 Al

Stinshoff, R., Nayak, A. K., Fecher, G. H., Balke, B., Ouardi, S., Skourski, Y., et al. (2017). Completely compensated ferrimagnetism and sublattice spin crossing in the half-metallic Heusler compound Mn1.5 FeV0.5 Al. Physical Review B, 95(6): 060410, pp. 1-5. doi:10.1103/PhysRevB.95.060410.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-E07E-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-C3B5-0
Genre: Journal Article

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 Creators:
Stinshoff, Rolf1, Author              
Nayak, Ajaya K.2, Author              
Fecher, Gerhard H.3, Author              
Balke, Benjamin4, Author
Ouardi, Siham5, Author              
Skourski, Yurii4, Author
Nakamura, Tetsuya4, Author
Felser, Claudia6, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Ajaya Nayak, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863426              
3Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863431              
4External Organizations, ou_persistent22              
5Siham Ouardi, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863439              
6Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: The Slater-Pauling rule states that L2(1) Heusler compounds with 24 valence electrons never exhibit a total spin magnetic moment. In the case of strongly localized magnetic moments at one of the atoms (here Mn) they will exhibit a fully compensated half-metallic ferrimagnetic state instead, in particular, when symmetry does not allow for antiferromagnetic order. With the aid of magnetic and anomalous Hall effect measurements, it is experimentally demonstrated that Mn1.5V0.5FeAl follows such a scenario. The ferrimagnetic state is tuned by the composition. A small residual magnetization, which arises due to a slight mismatch of the magnetic moments in the different sublattices, results in a pronounced change of the temperature dependence of the ferrimagnet. A compensation point is confirmed by observation of magnetic reversal and sign change of the anomalous Hall effect. Theoretical models are presented that correlate the electronic structure and the compensation mechanisms of the different half-metallic ferrimagnetic states in the Mn-V-Fe-Al Heusler system.

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Language(s): eng - English
 Dates: 2017-02-152017-02-15
 Publication Status: Published in print
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 95 (6) Sequence Number: 060410 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008