The magnetoelectric effect is a key issue for material science and is particularly significant in the high frequency band, where it is indispensable in industrial applications. Here, we present for the first time, a study of the high frequency tunneling magneto-dielectric (TMD) effect in nanogranular FeCo-MgF films, consisting of nanometer-sized magnetic FeCo granules dispersed in an MgF insula...

The dielectric anisotropy of a highly dispersive dual-frequency nematic liquid crystal (MDA-00-3969 (Merck KGa)) has been determined using the optical fully-leaky guided-mode technique. A 4Vrms sinusoidal voltage was applied across a 5microm hybrid aligned nematic (HAN) cell at various frequencies in both the positive and negative dielectric anisotropy regime. Optical data was collected at each...

Investigation on dielectric frequency selective structure with arbitrary shaped grating is done numerically for filter applications. To obtain well designed parameters, the effects of shape, size and dielectric constant of the structure are carefully studied. We examine in detail various structures and their spectral response which have not been reported by other authors. It is also shown how t...

Decades of molecular dynamics and normal mode calculations suggest that the largest-scale collective vibrational modes of proteins span the picosecond to nanosecond time scale. Experimental investigation of these harmonic, low-amplitude motions, however, has proven challenging. In response, we have developed a vector network analyzer-based spectrometer that supports the accurate measurement of ...

A complex quantitative model for nearly constant loss ~NCL! is proposed based on an effective-medium approach. Unlike previous NCL response models, it satisfies the Kronig–Kramers transform relations. Here the effective-medium dielectric-level model depends directly on the concentration of mobile charge present and its complex dielectric response is identified as arising from electrical interac...

OBJECTIVE The objective of the present study was to evaluate energy intake (EI) estimated from two non-consecutive 24-hour recalls (24-HDRs) and a pre-coded seven-day food record (7-dFR) against objective measurements of energy expenditure (EE) in children. DESIGN A total of 67 7-8 year-olds and 64 12-13 year-olds completed the 2×24-HDRs, the 7-dFR, and wore ActiReg(®) (PreMed AS, Oslo, Norwa...

Structural, vibrational, and lattice dielectric properties of CdCu3Ti4O12 are studied using the densityfunctional theory within the local spin-density approximation, and the results are compared with those computed previously for CaCu3Ti4O12 . Replacing Ca with Cd is found to leave many calculated quantities largely unaltered, although significant differences do emerge in zone-center optical ph...

It is a well-known fact that the presence of charged dispersed solid particles in an electrolyte solution considerably modifies the dielectric permittivity and conductivity of the system as compared to that of the pure dispersing medium. The enhanced conductivity of the electrical double layer, and its polarization under the action of the external field are responsible for that fact. A related ...