Spin polarization of quaternary Co 2Cr 1-xFe xAl Heusler alloys

S. V. Karthik, A. Rajanikanth, Y. K. Takahashi, T. Okhubo, K. Hono

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43 Citations (Scopus)

Abstract

Point contact Andreev reflection measurements of Co 2Cr 1-xFe xAl Heusler alloys showed that the spin polarization P decreases with x from P=0.62 for x=0.0 to P=0.54 for x=0.4 and then increases slightly to P=0.56 for x= 1.0. The deviation in P of the samples with x=0.0 and 0.4 from the theoretical predictions (P>0.9) can be accounted to the phase separation, whereas the deviation in P of the sample with x=1.0 from the theoretical predictions (P=0.3) suggests the lack of accuracy in density of state calculations.

Original languageEnglish
Article number052505
JournalApplied Physics Letters
Volume89
Issue number5
DOIs
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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