Periodical
Electronic Structure of Cr--Mn--V--Z System Based on Heusler Mn2VZ (Z = Al, Ga)
| العنوان: | Electronic Structure of Cr--Mn--V--Z System Based on Heusler Mn2VZ (Z = Al, Ga) |
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| المؤلفون: | Haraguchi, Kyosuke, Fujii, Shinpei, Ishida, Shoji, Asano, Setsuro |
| المصدر: | Journal of the Physical Society of Japan; July 2012, Vol. 81 Issue: 7 p074710-074714, 5p |
| مستخلص: | On the basis of first-principles calculations of (Mn1-xCrx)2VZ and Mn2(V1-yYy)Z (Y = Cr, Mn; Z = Al, Ga), we have shown the possibility of getting highly spin-polarized ($P \geq 90$%) alloys of magnetic moments ranging from $-2$ to 0 $\mu_{\text{B}}$/f.u. in these systems. Moreover, these systems has the ferrimagnetic state as the most stable magnetic state. The systems Mn2(V1-yYy)Z have a high spin polarization (larger than 90%) for $0 \leq y \leq 1$. The spin polarization ($P$) of (Mn1-xCrx)2VZ markedly decreases for $x \geq 0.5$. The cause of the drastic change is not the disappearance of a gap but the location of the $E_{\text{F}}$ in the up-spin band. |
| قاعدة البيانات: | Supplemental Index |
| تدمد: | 00319015 13474073 |
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| DOI: | 10.1143/JPSJ.81.074710 |