Robust fully-compensated ferrimagnetism and semiconductivity in inverse Heusler compounds: Ti^sub 2^VZ (Z = P, As, Sb, Bi)

Compensated ferrimagnets, due to their zero net magnetization and potential for large spin-polarization, have been attracting more and more attention in the field of spintronics. We demonstrate potential candidate materials among the inverse Heusler compounds Ti2VZ (Z = P, As, Sb, Bi) by first princ...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2018-03, Vol.449, p.515
Main Authors: Zhang, YJ, Liu, ZH, Liu, GD, Ma, XQ, Cheng, ZX
Format: Article
Language:English
Subjects:
Antimony
Chemical compounds
Conductivity
Electrons
Ferrimagnetism
Ferrimagnets
Ferromagnetism
First principles
Magnetic moments
Magnetism
Magnetization
Materials selection
Polarization (spin alignment)
Semiconductivity
Semiconductors
Spintronics
Titanium compounds
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Summary:Compensated ferrimagnets, due to their zero net magnetization and potential for large spin-polarization, have been attracting more and more attention in the field of spintronics. We demonstrate potential candidate materials among the inverse Heusler compounds Ti2VZ (Z = P, As, Sb, Bi) by first principles calculations. It is found that these compounds with 18 valence electrons per unit cell have zero net magnetic moment with compensated sublattice magnetization, as anticipated by a variant of Slater-Pauling rule of Mt = NV - 18, where Mt is the total spin magnetic moment per formula unit and NV is the number of valence electrons per formula unit, and show semiconducting behavior in both spin channels with a moderate exchange splitting, as with ordinary ferromagnetic semiconductors. Furthermore, the fully compensated ferrimagnetism and semiconductivity are rather robust over a wide range of lattice contraction and expansion. Due to the above distinct advantages, these compounds will be promising candidates for spintronic applications.
ISSN:0304-8853
1873-4766