Benutzerhandbuch Datenschutzhinweis Impressum Kontakt





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

Es sind keine MPG-Autoren in der Publikation vorhanden
Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar

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.

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.