| Autor: |
Onodera, Y., Elphick, K., Kanemura, T., Roy, T., Tsuchiya, T., Tsujikawa, M., Yoshida, K., Nagai, Y., Mizukami, S., Hirohata, A., Shirai, M. |
| Zdroj: |
Japanese Journal of Applied Physics; Jul2020, Vol. 59 Issue 7, p1-5, 5p |
| Abstrakt: |
Nowadays advanced magnetic tunnel junction applications demand very high tunnel magnetoresistance at room temperature, thus it is quite important to explore high Curie temperature Tc half-metallic Heusler alloys. In this article first-principles calculation unveiled that NiCrMnSi has a Tc of 1200 K comparable to that of traditional Co2MnSi Heusler alloys, even though it does not contain a Co element. In addition, we examined whether NiCrMnSi Heusler phase films can be obtained by magnetron sputtering on MgO substrates. The results of the structural analysis and first-principles calculations indicated that the NiCrMnSi Heusler phase is metastable. A possible route to obtain a metastable NiCrMnSi Heusler alloy is to utilize appropriate templates. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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