Stoner

Anisimov V i, Zaanen J and Andersen O K 1991 Band theory and Mott insuiators Hubbard U instead of Stoner / Phys. Rev. B 44 943... 

This critical field called coercivity or switching field is also equal to If a field is appHed in between 0 and 90° the coercivity varies from maximum to zero. In the case of this special example the appHed field = H/. Based on the classical theory, Stoner-Wohlfarth (33)... 

Air separation Jig separation Pneumatic separation (stoners) Used to separate light (organic) materials from heavy (inorganic) materials in solid waste Used to separate light and heavy materials in solid waste hy means of density separation Used to separate light and heavy materials in solid waste Zig-zag-air, vihrating-air, rotary-air, and air-knife classifiers used with processed wastes shaldng-tahle ... 

Entsteinmaschine, /. stoner, seeder, entstellen, v.t. disfigure, distort, entstrbmen, v.i. flow, stream, issue, escape (from). 

Using this model in analogy with previous studies we can calculate a magnetic moment (fi) of the system with fixed Stoner exchange parameter Id and occupation of the d states. The total energy could then be calculated as the balance between the kinetic energy and the spin-polarization energy ... 

The Stoner exchange parameter was chosen so that the magnetic moment behaved similarly to the magnetic moment for the real Fe-Co alloy. These values were, however,... 

Figure 2. The structural energy difference (a) and the magnetic moment (b) as a function of the occupation of the canonical d-band n corresponding to the Fe-Co alloy. The same lines as in Fig. 1 are used for the different structures. In (b) the concentration dependence of the Stoner exchange integral Id used for the spin-polarized canonical d-band model calculations is shown as a thin dashed line with the solid circles. The value of Id for pure Fe and Co, calculated from LSDA and scaled to canonical units, are also shown in (b) as solid squares.

Table 2. Stoner s scheme for assignment of electronic configurations.

According to the Stoner scheme the electronic configuration for the element sulphur, for example, is 2, 2, 2t 4, 2, 2, 2. This configuration could account successfully for the various valency states shown by the element, that is 2, 4, 6 as mentioned before. However, this new scheme did nothing to resolve the problem of the violation of quantum numbers as seen in the splitting of spectral lines in a magnetic field. 

This is the property we now call spin angular momentum. Pauli found that he could obtain Stoner s classification of electronic configurations from the following simple assumption which constitutes the famous exclusion principle in its original form. 

Stoner, E. [1924] The Distribution of Electrons among Atomic Levels , Philosophical Magazine, (6), 48, p. 719. 

Soon after Bohr developed his initial configuration Arnold Sommerfeld in Munich realized the need to characterize the stationary states of the electron in the hydrogen atom by. means of a second quantum number—the so-called angular-momentum quantum number, Bohr immediately applied this discovery to many-electron atoms and in 1922 produced a set of more detailed electronic configurations. In turn, Sommerfeld went on to discover the third or inner, quantum number, thus enabling the British physicist Edmund Stoner to come up with an even more refined set of electronic configurations in 1924. 

This problem clearly did not worry Stoner, who just went ahead and assumed that three quantum numbers could be specified in many-electron atoms. In any case, Stoner s scheme solved certain problems present in Bohr s configurations. For example, Bohr had assigned phosphorus the configuration 2,4,4,41, but this failed to explain the fact that phosphorus shows valencies of three and five. Stoner s configuration for phosphorus was 2,2,2,4,2,2,1, which easily explains the valencies, since it becomes plausible that either the two or the three outermost subshells of electrons form bonds. 

Pentolite is also used as a standard charge for both air blast and underwater blast measurements. Extensive air blast measurements using Pentolite were made by Stoner Bleakney (Ref 3). Theoretical air blast computations for Pentolite (and TNT) have been given by Shear Wright (Ref 7) and by Shear (Ref 7a)... 

This assumption was first made by E. C. Stoner, Phil. Mag., 8, 250 (1929), in order to account for the observed moments of iron-group ions. 

M. Alder, Dissertation (Zurich, 1916), quoted by Stoner, reference 9, p. 537. 

It has been found that no significant error is introduced by combining the subgroups of an entire shell, using an average value of y for the entire K, L, M,. .. shell. With the Stoner distribution of electrons among the levels, this average value is... 

Dermal exposure of rats to doses of dimethyltin dichloride at 80 mg/kg body weight produced dermal necrosis with the formation of black scars the same dose of dibutyltin dichloride produced little surface damage to the skin together with subcutaneous oedema. Dioctyltin dichloride produced no skin lesions (Barnes Stoner,... 

Barnes JM, Stoner HB (1958) Toxic properties of some dialkyl and trialkyl tin salts. British Journaiof industriai Medicine, 15 15-22. 

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