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  The Properties of Co2Cr1-xFexAl Heusler Compounds

Felser, C., Elmers, H.-J., & Fecher, G. H. (2005). The Properties of Co2Cr1-xFexAl Heusler Compounds. In Lecture Notes in Physics: Half-metallic Alloys (pp. 113-152). Springer Berlin Heidelberg.

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Felser, Claudia1, Author              
Elmers, Hans-Joachim2, Author
Fecher, Gerhard H.2, Author
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1External Organizations, ou_persistent22              
2external, ou_persistent22              

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 Abstract: The classical concept of band structure tuning as used for semiconductors by partly replacing one atom by a chemical neighbor without altering the structure is applied examplarily to the half-metallic ferromagnetic Heusler compound Co2Cr1-xFexAl. Band structure calculations are presented for ordered and disordered compounds. We present experimental and theoretical results. The connection between specific site disorder and the band structure is shown explicitly with particular emphasis on the half-metallic properties. Experimentally observed deviations from the ideal Heusler structure and from the simple Slater-Pauling rule for the magnetization are discussed in close relation to theoretical models. It has been found that the orbital magnetic moment and hence the spin-orbit coupling is important for the understanding of the half-metallicity. Experimental techniques which can be used to determine the electronic properties are described.

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 Dates: 2005-03-01
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/11506256_4
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Title: Lecture Notes in Physics: Half-metallic Alloys
Source Genre: Book
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Publ. Info: Springer Berlin Heidelberg
Pages: - Volume / Issue: 676 Sequence Number: - Start / End Page: 113 - 152 Identifier: ISSN: 0075-8450
DOI: 10.1007/b137760