Pressure Variation of Electronic and Magnetic Properties of LaCoCrAl Quaternary Heusler Alloy.

Autor: Singh, Srishti, Yousuf, S., Bhat, T. M., Mir, S. A., Sofi, S. A., Khandy, Saveer A., Seh, Ab Q., Nabi, M., Gupta, D. C.
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Zdroj: AIP Conference Proceedings; 5/24/2019, Vol. 2115 Issue 1, p030350-1-030350-4, 4p
Abstrakt: The electronic structure and magnetic properties of rare earth based quaternary LaCoCrAl alloy at different pressures ranging from 0 GPa to 30 GPa using First principles approach is reported. The electronic band profile and density of states with increase in pressures display a transition from half-metallic to metallic nature. The half-metallicity of the compound can be maintained at zero pressure. The magnetic moment shows a decreasing trend with pressure due to which half-metallicity also vanishes. The material shows an indirect band gap of 0.53 eV at 0 GPa of pressure with optimized lattice parameter of 6.59 Å. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index