Magnetization saturation moment

Both possible valence states contribute in the ratio 78 22, giving iron the necessary magnetic saturation moment of 2.22 magnetons. This concept leads to a valency of 5.78. 

Kondo magnetic field magnetic saturation moment of an ion, like, e.g., magnetic saturation moment in a heavy-fermion compound scaling parameter for the magnetoresistivity of a Kondo lattice... 

The calculated energy of interaction of an atomic moment and the Weiss field (0.26 uncoupled conduction electrons per atom) for magnetic saturation is 0.135 ev, or 3070 cal. mole-1. According to the Weiss theory the Curie temperature is equal to this energy of interaction divided by 3k, where k is Boltzmann s constant. The effect of spatial quantization of the atomic moment, with spin quantum number S, is to introduce the factor (S + 1)/S that is, the Curie temperature is equal to nt S + l)/3Sk. For iron, with 5 = 1, the predicted value for the Curie constant is 1350°K, in rough agreement with the experimental value, 1043°K. 

Judge et al. [78] examined other magnetic properties of CoP. The saturation moments crs were 100 and 116 emu/g for deposits from solutions A and B, respectively. Although the P content of the deposits varied with pH, the as values were essentially independent of pH. The squareness ratio of the M-H loop showed no significant dependence on any quantity other than film thickness it ranged from 0.5 for thin films to 0.8 for thick deposits. 

Table 9. Conduction electron polarization effect in uranium ferromagnetic monocompounds conduction electron polarization moment Psai saturation moment from magnetization studies ordered magnetic moment as determined by neutron scattering...

Ps is the bulk saturation moment determined by magnetization measurements. 

Ferromagnets have their spins aligned parallel and exhibit large positive (about 102) magnetic susceptibilities. They possess a macroscopic spontaneous magnetization at zero applied field below the Curie temperature, Tc, and have a characteristic saturation moment, Ms, in a finite applied field (see Fig. 128). 

EuRu4Sbn is metallic and becomes ferromagnetic for temperatures below 3.3 K (Takeda and Ishikawa, 2000b). The low temperature saturation moment is about 6.2/xb, 89% of the Eu+2 value. Low temperature heat capacity measurements indicate that the magnetic entropy removed due to magnetic order is also only about 90% of its expected value (Rln8). It is likely that the lanthanide site is not completely filled in this compound although mixed valence behavior can not be ruled out with the available data. 

Neutron diffraction measurements of stoichiometric composition [11, 18] revealed that the magnetic moment is localized mainly on Mn atoms. Reported values of the Mn magnetic moment range from 3.8 to 4.2 pb-The magnetic moment of Ni atoms is considerably smaller, about 0.2 — 0.4 fj,B- Compositional dependence of the magnetic moment in Ni2+a Mni xGa alloys has not been reported. It is known only that the magnetization saturation decreases with increasing x [19, 20],... 

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