Journal
PHYSICAL REVIEW B
Volume 87, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.024420
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We present extensive first-principles calculations on the inverse full-Heusler compounds having the chemical formula X(2)YZ, where X = Sc, Ti, V, Cr, or Mn; Z = Al, Si, or As; and the Y ranges from Ti to Zn. Several of these compounds are identified to be half-metallic magnets. We show that the appearance of half-metallicity is associated in all cases with a Slater-Pauling behavior of the total spin-magnetic moment. There are three different variants of this rule for the inverse Heusler compounds depending on the chemical type of the constituent transition-metal atoms. Simple arguments regarding the hybridization of the d orbitals of neighboring atoms can explain these rules. We expect our results to trigger further experimental interest in these types of half-metallic Heusler compounds. DOI:10.1103/PhysRevB.87.024420
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