Electronic structures and magnetism in the Li2AgSb-type Heusler alloys, Zr2CoZ (Z=Al, Ga, In, Si, Ge, Sn, Pb, Sb): A first-principles study

作者: X.T. Wang , Y.T. Cui , X.F. Liu , G.D. Liu

DOI: 10.1016/J.JMMM.2015.06.035

关键词:

摘要: Abstract The electronic and magnetic properties of Zr2CoZ (Z=Al, Ga, In, Si, Ge, Sn, Pb, Sb) alloys with a Li2AgSb-type structure were investigated systematically using the first-principle calculations. Pb) are predicted to be half-metallic ferromagnets at their equilibrium lattice constants. Zr2Co-based have Mt (the total moment per unit cell) Zt valence concentration) values following Slater–Pauling rule Mt=Zt−18. effects constants on discussed in detail. Moreover, all this paper negative formation energy, which implies that they thermodynamically stable.

参考文章(28)
Nan Zheng, Yingjiu Jin, Band-gap and Slater–Pauling rule in half-metallic Ti2-based Heusler alloys: A first-principles study Journal of Magnetism and Magnetic Materials. ,vol. 324, pp. 3099- 3104 ,(2012) , 10.1016/J.JMMM.2012.05.009
Axel Czybulka, Anett Petersen, Hans-Uwe Schuster, Lithium-platinmetall-Al(Ga, In)-legierungen: Neue farbige ternäre intermetallische phasen Journal of The Less Common Metals. ,vol. 161, pp. 303- 312 ,(1990) , 10.1016/0022-5088(90)90041-H
P. H. Mavropoulos, I. Galanakis, A review of the electronic and magnetic properties of tetrahedrally bonded half-metallic ferromagnets. Journal of Physics: Condensed Matter. ,vol. 19, pp. 315221- 315221 ,(2007) , 10.1088/0953-8984/19/31/315221
John P. Perdew, Kieron Burke, Matthias Ernzerhof, Generalized Gradient Approximation Made Simple Physical Review Letters. ,vol. 77, pp. 3865- 3868 ,(1996) , 10.1103/PHYSREVLETT.77.3865
John P. Perdew, J. A. Chevary, S. H. Vosko, Koblar A. Jackson, Mark R. Pederson, D. J. Singh, Carlos Fiolhais, Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation. Physical Review B. ,vol. 46, pp. 6671- 6687 ,(1992) , 10.1103/PHYSREVB.46.6671
Siham Ouardi, Gerhard H. Fecher, Claudia Felser, Jürgen Kübler, Realization of spin gapless semiconductors: the Heusler compound Mn2CoAl. Physical Review Letters. ,vol. 110, pp. 100401- ,(2013) , 10.1103/PHYSREVLETT.110.100401
R. A. de Groot, F. M. Mueller, P. G. van Engen, K. H. J. Buschow, New Class of Materials: Half-Metallic Ferromagnets Physical Review Letters. ,vol. 50, pp. 2024- 2027 ,(1983) , 10.1103/PHYSREVLETT.50.2024
H.Y. Jia, X.F. Dai, L.Y. Wang, R. Liu, X.T. Wang, P.P. Li, Y.T. Cui, G.D. Liu, Doping effect on electronic structures and band gap of inverse Heusler compound: Ti2CrSn Journal of Magnetism and Magnetic Materials. ,vol. 367, pp. 33- 39 ,(2014) , 10.1016/J.JMMM.2014.04.069
G. D. Liu, X. F. Dai, S. Y. Yu, Z. Y. Zhu, J. L. Chen, G. H. Wu, H. Zhu, John Q. Xiao, Physical and electronic structure and magnetism of Mn2NiGa: Experiment and density-functional theory calculations Physical Review B. ,vol. 74, pp. 054435- ,(2006) , 10.1103/PHYSREVB.74.054435