Effect of abnormal high solubility of impurity in nanocrystalls and its metrological aspects
Б. Л. ОксенгендлерArifov Institute of Electronics, Uzbek Academy of Sciences, Tashkent, UzbekistanВ.Н. НикифоровM.V.Lomonosov State University, Moscow, RussiaВ. Г. СрединGreat Peter Military Academy, Moscow, RussiaN. N. TuraevaInstitute of Chemistry and Physics of Polymers, Uzbek Academy of Sciences, Tashkent, UzbekistanС. Е. МаксимовArifov Institute of Electronics, Uzbek Academy of Sciences, Tashkent, Uzbekistan
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The problem of doping impurity intrusion into nanoparticles is analyzed. Thermodynamical model of the effect is developed, taking into account specific properties of nanoparticles: quantum confinement of elementary excitations and the impact of nanoparticle surface states compared with bulk ones. We obtained the size dependence of impact equilibrium solubility in nanoparticles. Magnetometric experiments, carried out on nanoparticle ensemble of iron oxide doped with gadolinium and other impurities, show lack of contradictions and good qualitative accordance between the model and the experiment.
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