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Magnetic structure
About: Magnetic structure is a research topic. Over the lifetime, 10787 publications have been published within this topic receiving 207143 citations.
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TL;DR: Magnetization, Mossbauer and neutron diffraction measurements have been made on powdered and single crystal samples of Fe3P as mentioned in this paper, and the average moments on the iron sites are 2.12 mu B, 1.25 mu B and 1.83 mu B.
Abstract: Magnetization, Mossbauer and neutron diffraction measurements have been made on powdered and single crystal samples of Fe3P. The average moments on the iron sites are 2.12 mu B, 1.25 mu B and 1.83 mu B. The Mossbauer spectra indicate a splitting of the moments of approximately 0.1 mu B for the atoms on each iron site. The observed magnetic hyperfine fields are 28.4 T and 27.3 T for FeI, 17.3 T and 17.5 T for FeII and 23.0 T and 25.0 T for FeIII at room temperature.
58 citations
TL;DR: In this paper, a geometrically frustrated Fe3Sn2 magnet with a kagome-bilayer structure was observed to have a Hall effect that increases with temperature and reaches -0.875 cm at 380 K.
Abstract: We report on the observation of a large topological Hall effect (THE) over a wide temperature region in a geometrically frustrated Fe3Sn2 magnet with a kagome-bilayer structure. We found that the magnitude of the THE resistivity increases with temperature and reaches -0.875 {\mu}{\Omega}.cm at 380 K. Moreover, the critical magnetic fields with the change of THE are consistent with the magnetic structure transformation, which indicates that the real-space fictitious magnetic field is proportional to the formation of magnetic skyrmions in Fe3Sn2. The results strongly suggest that the large THE originates from the topological magnetic spin textures and may open up further research opportunities in exploring emergent phenomena in kagome materials.
58 citations
TL;DR: In this paper, the ball-milling process induces the phase transformation from the tetragonal structure to the disordered face-centered-cubic structure in Ni2MnGa ferromagnetic shape-memory alloys.
Abstract: We report here that the ball-milling process induces the phase transformation from the tetragonal structure to the disordered face-centered-cubic structure in Ni2MnGa ferromagnetic shape-memory alloys. The in situ high-energy x-ray diffraction analyses reveal that an intermediate phase, which is characterized by amorphous structure, controls the transformation kinetics during the postannealing process. Completely different from their coarse-grained counterparts, the ferromagnetic Ni2MnGa nanoparticles undergo various sequences of structural transitions that are tailored by the crystallite size, atomic order, and intrinsic magnetic structure.
58 citations
TL;DR: In this paper, the ordered oxygen-deficient perovskite YBaMn2O5 has been synthesized as a monophasic sample and a variable temperature neutron diffraction study of this phase has been carried out.
58 citations
TL;DR: In this paper, the 57 Fe Mossbauer effects of Nd 2 Fe 14 B were measured in a temperature range of 4.2−300 K. They were discussed in a framework of the changes in the band structure and the lattice parameters incidental to the spin reorientation transition.
58 citations