Mindlin plate theory was used to provide accurate solutions to thickness-shear vibrations of plates, which have a much higher frequency than usual flexural vibrations and are the functioning modes of quartz crystal resonators.
Such an effect can arise in a "soft mode" transition, so-called [16] since it can be explained in terms of a temperature dependence of the frequency of a normal mode of crystal vibration.
The calculated far-infrared (FIR) spectrum estimated from the phonon modes of the crystal did not correspond to the sum of the calculated spectra of the constituent cation and anion.
A new tunable photonic crystal filter at visible band has been proposed and designed, depending on the characteristics of the defect modes of photonic crystals in different conditions.
In this study, the design of a polarization-independent (dual-polarization) waveguide is presented by utilizing surface modes of photonic crystals.
The packing modes of FPPT and PPT crystals are analyzed in details and effective coupling projected areas are put forward to understand the intermolecular interactions.
X-ray single-crystal structures of these complexes reveal that strong hydrogen bonding O H···O/N H···O/O H···N and weak C H···O/C H···π/π···π intermolecular interactions direct the packing modes of molecular crystals together.
It was found that the starting molecular ensemble and the presence or absence of shearing cause changes in the growth mode of the crystal as well as in the enthalpies of crystallization and melt.
