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  • Title: High Spin Magnetic Moments in All-3d-Metallic Co-Based Full Heusler Compounds.
    Author: Tas M, Özdoğan K, Şaşıoğlu E, Galanakis I.
    Journal: Materials (Basel); 2023 Dec 07; 16(24):. PubMed ID: 38138686.
    Abstract:
    We conduct ab-initio electronic structure calculations to explore a novel category of magnetic Heusler compounds, comprising solely 3d transition metal atoms and characterized by high spin magnetic moments. Specifically, we focus on Co2YZ Heusler compounds, where Y and Z represent transition metal atoms such that the order of the valence is Co > Y > Z. We show that these compounds exhibit a distinctive region of very low density of minority-spin states at the Fermi level when crystallizing in the L21 lattice structure. The existence of this pseudogap leads most of the studied compounds to a Slater-Pauling-type behavior of their total spin magnetic moment. Co2FeMn is the compound that presents the largest total spin magnetic moment in the unit cell reaching a very large value of 9 μB. Our findings suggest that these compounds are exceptionally promising materials for applications in the realms of spintronics and magnetoelectronics.
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