Polarization effects nanomaterials

Therefore the radiospectroscopy can be considered as a sensitive tool for the size effects investigation in nanomaterials. The theoretical base for above methods application is the description of radiospectroscopy spectra peculiarities due to above size effects with respect to the characteristic features of a nanomaterial. In particular, the disappearance of spontaneous polarization at critical size in ferroelectric nanomaterial should lead to the variation of the spectrum symmetry, while the distribution of the nanoparticle sizes have to result in the inhomogeneous resonance lines broadening. 

As noted in previous chapters of this book, crystal structure parameters (coordination numbers, interatomic distances, unit cell volumes), characteristics of phase transformations, and physical properties of samples can depend on the size of crystal grains the detailed reviews of the size effect in different mechanical properties of nanomaterials can be found in [9,105]. In the present chapter it is shown that the size effect is especially significant for electrophysical properties of crystals, including the effect of dispersed powders on the properties of polar liquids contacting with them. 

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