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  Phase-separation-induced changes in the magnetic and transport properties of the quaternary Heusler alloy Co2Mn1-xTixSn

Graf, T., Barth, J., Blum, C. G. F., Balke, B., Felser, C., Klaer, P., et al. (2010). Phase-separation-induced changes in the magnetic and transport properties of the quaternary Heusler alloy Co2Mn1-xTixSn. Physical Review B, 82(10): 104420, pp. 1-6. doi:10.1103/PhysRevB.82.104420.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-B623-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-B627-3
Genre: Journal Article

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 Creators:
Graf, Tanja1, Author
Barth, Joachim1, Author
Blum, Christian G. F.1, Author
Balke, Benjamin1, Author
Felser, Claudia2, Author              
Klaer, Peter1, Author
Elmers, Hans-Joachim1, Author
Affiliations:
1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: The quaternary Heusler compound Co2Mn1-xTixSn with x=0, 0.2, 0.4, 0.5, 0.6, 0.8, and 1 shows a phase separation into the two Heusler compounds, Co2MnSn and Co2TiSn. Only at the edges of the composition range a slight admixture of Mn and Ti to the respective other phase is observed. This phase separation leads to a distinct microstructure which can be altered by the composition of the material. Pronounced changes in the magnetic and electronic properties take place with varying composition. Two magnetic transitions occur which indicate different Curie temperatures for both phases. The reduction in the thermal lattice conductivity is of particular interest for an optimization of Heusler compounds for thermoelectric applications. In the field of spintronics the use of superlattices composed of Co2MnSn and Co2TiSn without any interlayer diffusion is suggested.

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 Dates: 2010-09-17
 Publication Status: Published in print
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 82 (10) Sequence Number: 104420 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008