Journal of the Physical Society of Japan · 1983 · 26 citations · 21 references
Magnetic PropertiesEngineeringSpin SystemsSpin TexturesMagnetic ResonanceChemistryOrthogonal Spin AnisotropiesSpin DynamicMagnetic MaterialsSpin PhenomenonMagnetismQuantum MaterialsFecl 2Mossbauer SpectroscopyRandom MixtureSpin PhysicsPhysicsLow-dimensional SystemsAtomic PhysicsQuantum MagnetismSpintronicsFerromagnetismNatural SciencesCondensed Matter PhysicsApplied PhysicsMössbauer StudyCocl 2
Mössbauer spectroscopy has been applied to a random mixture with orthogonal spin anisotropies, Fe 1- x Co x Cl 2 ·2H 2 O. The direction of an “individual Fe spin” of Co(Fe)-rich samples determined from the Mössbauer spectra was tilted even in the antiferromagnetic (AF) phase as well as in the mixed ordering phase. This means that, in the Co(Fe)-rich AF phase, although the spin component parallel to the easy axis of FeCl 2 ·2H 2 O (CoCl 2 ·2H 2 O) has no long-range order according to the neutron scattering measurement, the component exists on each lattice site statically at least in the time scale of 57 Fe Mössbauer spectroscopy (∼10 -8 s). The direction of an “individual Fe spin” has been shown to be strongly affected by the local environment around the Fe spin.
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