The formula for Fe3O4 may be written as Fe2+O2−(Fe3+)2(O2−)3 in which the Fe ions exist in both +2 and +3 valence states in the ratio of 1:2. A net spin magnetic moment exists for each Fe2+ and Fe3+ ion. There are antiparallel spin–coupling interactions between the Fe...
Temperature dependence of magnetic moment measured for as-prepared Ni-Mn-Ga microwire (a) and hysteresis loops measured at different temperatures (b). Full size image TheM(T)dependences in Fig.1areflect a nonuniform magnetic character of the as-received wire produced by the atomic disorder and ...
Exchange splitting measurements of 3s-spectra were used to estimate the atomic magnetic moment of the Fe atom in Fe-B amorphous and crystalline alloys. These results agree qualitatively with saturation magnetization measurements including the deviation from the Slater-Pauling curve. This deviation ...
Moment of inertia in the electron band structure for bulk fcc Co strained along thezaxis. The magnetic moment is also inzdirection. The colour and the intensity indicates the sign and value of the inertia contribution (blue −ι < 0; red −ι > 0; yellow −\(\iota \approx...
ChemInform Abstract: Crystal Growth, Structure, Polarization, and Magnetic Properties of Cesium Vanadate, Cs2V3O8: A Structure—Property Study. The magnetic susceptibility data were measured as a function of the temperature and yielded an effective magnetic moment of 1.78 μB for the V(4+) ......
Since the antiferromagnet FeMn, due to its high Néel temperature, unique 3Q spin structure and the presence of uncompensated spin moment confirmed in polycrystalline ultrathin films lately [12], has become an ideal choice to study the interfacial AFM-FM interaction. Here, CoPt single layer with...
However, in the presence of a magnetic field, there will be a net statistical alignment of the magnetic moments analogous to a paramagnet but with a higher magnetic moment, which can be up to 104 times larger than that of an atomic paramagnet. To name some examples, superparamagnetic iron ...
The formula has an intuitive structure: the first three terms come from the 𝑆̂𝑖,𝑧𝑆̂𝑗,𝑧 and 𝑆̂2𝑖,𝑧 operators in the Heisenberg exchange and magnetic anisotropy terms, and thus contribute to the diagonal elements in the Hamiltonian matrix. The last term however ...
Apppcation of magic moment formula in the non - uniform magic field 磁力矩公式在非均匀磁场中的应用 " for his precision determination of the magic moment of the electron 用射频束技术精确地测定出电子磁矩，创新了核理论 Molecular magic moment 分子磁矩 Anomalous magic moment...
whereD0denotes a constant,Qdenotes the diffusion activation energy andRdenotes the ideal gas constant. According to the above formula, the atomic diffusion ability of defective region increases with the increase of temperature. On the other hand, the temperature difference between the matrix and the ...