Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Highly ordered, half-metallic Co2FeSi single crystals

There are no MPG-Authors in the publication available
External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Blum, C. G. F., Jenkins, C. A., Barth, J., Felser, C., Wurmehl, S., Friemel, G., et al. (2009). Highly ordered, half-metallic Co2FeSi single crystals. Applied Physics Letters, 95(16), 1-3. doi:10.1063/1.3242370.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-9E50-5
A wide variety of properties such as half-metallicity is found among Heusler compounds. In order to separate intrinsic and extrinsic properties, high quality single crystals are required. Here, we report on differently grown crystals of the half-metallic ferromagnet Co2FeSi. All crystals show excellent ordering, resulting in outstanding electrical behavior with low residual resistivity and high residual-resistivity-ratio. All Co2FeSi crystals show a plateau in the resistivity below 50 K, which might point to half-metallic ferromagnetism. The cross-over from this unusual to more conventional transport (T2 dependence) around 50 K indicates the onset of spin flip scattering and thus is indispensable for understanding the strong temperature dependence of Co2FeSi tunneling magnetoresistance-devices.