Dielectric Permittivity of Artificial Crystals Based on Opal Matrices with ZnO Particles in the Millimeter Waveband
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Dielectric properties of nanocomposites based on opal matrices with ZnO particles are studied. Microwave measurements are carried out in the frequency range from 26 to 38 GHz. Frequency dependences of transmittance and reflection coefficients are obtained. The values of the real and imaginary parts of the complex dielectric permeability are obtained. The X-ray phase analysis of nanocomposites is carried out and their structure is studied. Low temperature magnetic properties of artificial crystals with ZnO particles doped with Mn and Gd in magnetic fields up to 30 kOe are discussed.
KeywordsOpal matrix ZnO Nanocomposite Microwave measurement High-frequency complex permittivity Effective permittivity of nanocomposite material
The results of section 1 were obtained within the state assignment of FASO of Russia (theme “Function”). The results of section 2 were obtained within the RFBR grant (project No. 18-32-00008). The results of sections 3 and 4 were obtained within the RSF grant (project No. 17-12-01002).
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