physica status solidi (a) · 1975 · 31 citations · 4 references
Magnetic PropertiesEngineeringMagnetic Moment DirectionMagnetic ResonanceMagnetic MaterialsSmall Ferromagnetic MomentMagnetismMagnetic MomentPhysicsLayered MaterialMagnetic MaterialCrystallographyTransition Metal ChalcogenidesSpintronicsFerromagnetismNatural SciencesCondensed Matter PhysicsApplied PhysicsMagnetic Property
ThMn2Si2 and ThMn2Ge2 were studied using neutron diffraction, X-ray diffraction, and magnetometric techniques. Both the compounds have tetragonal CeAl2Ge2-type structure. Position parameters z for Si and Ge were determined. ThMn2Si2 is an antiferromagnet with a Néel temperature of 483 K, and ThMn2Ge2 exhibits a small ferromagnetic moment of 0.35μB with the Curie temperature of 400 K. The magnetic transition in ThMn2Ge2 is of first order. The magnetic structures for both compounds consist of ferromagnetic layers perpendicular to the c0-axis which are antiferromagnetically coupled to adjacent layers. The magnetic moment direction in ThMn2Si2 is parallel t o the c0-axis, and in ThMn2Ge2 the magnetic moment is slightly deviated from c0-axis. It is suggested that conduction. [Russian Text Ignore]
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