Multicomponent magnetic

The preparation of core-shell -type magnetic nanopartides was reported [92,93] as a two-step synthesis in which nanopartides of one metal served as the seeds for growth of the shell from another metal. Thus, the reduction of platinum salts in the presence of Co nanopartides would allow the preparation of air-stable CocorePtsheii nanopartides [92]. The thermal decomposition of cobalt carbonyl in the presence of silver salt led to the formation of AgcoreCOgheii nanopartides [93]. The syntheses of these multicomponent magnetic nanostructures are discussed in Section 3.3.2.4. 

The exponents apply not only to solid systems (e.g. order-disorder phenomena and simple magnetic systems), but also to fluid systems, regardless of the number of components. (As we have seen in section A2.5.6.4 it is necessary in multicomponent systems to choose carefully the variable to which the exponent is appropriate.)... 

Grootveld, M.C., Herz, H., Haywood, R, Hawkes, G.E., Naughton, D., Perera, A., Knappitt, J., Blake, D.R. and Claxson A.W.D. (1994). Multicomponent analysis of radio-lytic products in human body fluids using high field proton nuclear magnetic resonance (NMR) spectroscoopy. Radiat. Phys. Chem. 43, 445-453. 

We wish also to mention the discovery of an unusual magnetic field dependence of specific heat in some multicomponent glasses in the 0.3 tK range [46]. A theoretical explanation of the phenomenon can be found in ref. [[47] pp. 17-46]. 

Young, N.D. Holland, J.F. Gerber, J.N. Sweeley, C.C. Selected Ion Monitoring for Multicomponent Analyses by Computer Control of Accelerating Voltage and Magnetic Field. Anal. Chem. 1975, 47, 2373-2376. 

We now consider the same solenoid, the volume of which is filled with some isotropic matter. We discuss only the case in which this material is homogenous and multicomponent. A magnetic moment per unit volume, m, is induced in the substance within the solenoid by the current. The net magnetic moment per unit volume is then given by... 

As far as the continuous symmetry breaking is concerned, the Goldstone theorem states [4] that this will generate hydrodynamic modes, that is, gapless excitations. The order parameter is multicomponent (n > 1) a vector i for magnetism breaking the rotational symmetry, a complex variable i j = ip e/e for charge-density waves and for superconductivity which... 

This method is closely related to the nonhydrolytic sol-gel method. For example, titania is prepared by etherolysis/condensation of TiCl4 by diisopropyl ether (Equation 2.4) or by direct condensation between TiCl4 and Ti(0- Pr)4 (Equation 2.5). Detailed chemistry of the reaction was examined by means of nuclear magnetic resonance (NMR), and it has been reported that the tme precursors are titanium chloroisopropoxides in equilibrium through fast ligand exchange reactions. A variety of metal oxides, " nomnetal oxides," multicomponent oxides" " were studied, and the nonhydrolytic sol-gel method was surveyed by Vioux and Leclercq. ... 

Recently it was experimentally proven that the highest yield of nanoparticles of different substances, including semiconductor and magnetic ones, is obtained in low pressure spray pyrolysis of special multicomponent solutions [1], During this pyrolysis micron size droplets of the multicomponent aqueous solution evaporate in a low pressure aerosol reactor. Additionally these droplets often have solid precursors of nanometer size, so we can consider every droplet as a colloidal solution. 

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