A Mössbauer spectroscopy and magnetic study of FeRh
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Temperature-induced mixed magnetic states in FeRh@FeO composite nanoparticles
2024, Materials Chemistry and PhysicsSynergy effect of temperature, electric and magnetic field on the depth structure of the FeRh/BaTiO<inf>3</inf> composite multiferroic
2022, Materials Science and Engineering: BCitation Excerpt :The iron microenvironments in the sample were determined by room temperature CEMS measurement (Fig. 2a). Based on previous results [43,58,59,60,61], the CEMS spectrum was fitted with four binomial distributions (BD) (only the effect of the next-neighbor atoms was taken into account), a sextet and two singlets. Both the ferromagnetic and the antiferromagnetic FeRh phases were described with three microenvironments apiece, 2 BD and a sextet for FM; and 2 BD and a singlet for AFM phase.
Structure and magnetic properties of highly coercive L1<inf>0</inf> nanocomposite FeMnPt thin films
2019, Materials CharacterizationCitation Excerpt :% in Fe1−yMny Pt, as determined from both experimental and theoretical studies. Various other structural refinement effects induced by presence of addition elements in Fe sites of crystal lattices in magnetic alloys have also been observed in other works [16–23]. It is interesting that in our recent work [2] we have observed the direct formation of an ordered L10 fct single-phase in the as-cast FeMnPt alloy (lattice parameters a = 3.9019 ± 0.0002 Å and c = 3.702 ± 0.0003 Å).
Thermodynamic, structural and magnetic studies of phase transformations in MnAl nanocomposite alloys
2018, Materials CharacterizationCitation Excerpt :As in the as-cast Mn55Al45 co-exist at least three binary MnAl phases, as it will be detailed within the XRD section, phases of various symmetry whose crystallites are formed with possibly different nucleation and growth mechanisms, it is plausible that the exothermic peak associated to phase transformations is observable at higher temperatures than in single phased alloys. Such delayed phase transformation exothermic peaks have been observed in other crystalline multi-phased alloys [33–41]. Phase transformation effects in multi-phase materials have also been investigated in nanoparticles [42–43] or thin films [44–45] and it has been shown that both composition and multiple phase co-existence is responsible for structural phase transition effects.
In situ monitoring of disorder-order A1-L1<inf>0</inf> FePt phase transformation in nanocomposite FePt-based alloys
2014, Journal of Alloys and CompoundsCitation Excerpt :It is very interesting that this kink occurs at the same temperature for both samples. It possibly suggests a change in the crystallization kinetics, from primary crystallization, mostly based on nucleation mechanisms to polymorphic crystallization, based on a combined nucleation-growth model [17–19]. This change occurs at 550 °C which is around the temperature of the disorder–order phase transformation.
Structural phase transition induced in Fe<inf>50</inf>Rh<inf>50</inf> alloys by high pressure
2005, Journal of Alloys and Compounds