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  Investigation of a novel material for magnetoelectronics: Co2Cr0.6Fe0.4Al

Felser, C., Heitkamp, B., Kronast, F., Schmitz, D., Cramm, S., Dürr, H. A., et al. (2003). Investigation of a novel material for magnetoelectronics: Co2Cr0.6Fe0.4Al. Journal of Physics: Condensed Matter, 15(41): PII S0953-8984(03)67522-3, pp. 7019-7027. doi:10.1088/0953-8984/15/41/010.

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 Creators:
Felser, C.1, Author           
Heitkamp, B2, Author
Kronast, F2, Author
Schmitz, D2, Author
Cramm, S2, Author
Dürr, H A2, Author
Elmers, H-J2, Author
Fecher, G H2, Author
Wurmehl, S2, Author
Block, T2, Author
Valdaitsev, D2, Author
Nepijko, S A2, Author
Gloskovskii, A2, Author
Jakob, G2, Author
Schönhense, G2, Author
Eberhardt, W2, Author
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1External Organizations, ou_persistent22              
2external, ou_persistent22              

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 Abstract: Heusler compounds are promising candidates for future spintronics device applications. The electronic and magnetic properties Of Co2Cr0.6Fe0.4Al, an electron-doped derivative Of Co2CrAl, are investigated using circularly polarized synchrotron radiation and photoemission electron microscopy (PEEM). Element specific imaging reveals needle shaped Cr rich phases in a homogeneous bulk of the Heusler compound. The ferromagnetic domain structure is investigated on an element-resolved basis using x-ray magnetic circular dichroism (XMCD) contrast in PEEM. The structure is characterized by micrometre-size domains with a superimposed fine ripple structure; the lateral resolution in these images is about 100 nm. The domains look identical for Co and Fe giving evidence of a ferromagnetic coupling of these elements. No ferromagnetic contrast is observed at the Cr line. Magnetic spectroscopy exploiting XMCD reveals that the lack of magnetic moment, detected in a SQUID magnetometer, is mainly due to the moment of the Cr atom.

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 Dates: 2003-10-22
 Publication Status: Issued
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Title: Journal of Physics: Condensed Matter
Source Genre: Journal
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Publ. Info: Bristol, UK : IOP Pub.
Pages: - Volume / Issue: 15 (41) Sequence Number: PII S0953-8984(03)67522-3 Start / End Page: 7019 - 7027 Identifier: ISSN: 0953-8984
CoNE: https://pure.mpg.de/cone/journals/resource/954928562478