The frequency dependences of complex initial permeability for triplecomponent composite materials based on two different types of ferrite filler (MnZn and NiZn ferrite) and a nonmagnetic polymeric matrix (PVC) were studied in the frequency range of 10 kHz–1 GHz. The frequency dispersion of permeability is discussed by means of a dynamic model based on the superposition of the two types of magne...

Nanomagnetic structures of hydrothermal NiZn ferrites sintered at various temperatures was studied in this work through Magnetic Force Microscopy (MFM) using different magnetically characterized tips. The magnetic patterns varied according to the tip employed and were correlated to the magnetic induced field generated by these different coated tips. NiZn ferrites were produced at 200°C by hydro...

• Hydrazine binds to the ? 1 -NiZn surfaces via N lone-pair of electrons. more strongly bimetallic catalyst than monometallic Ni and Zn. Stronger hydrazine adsorption is attributed synergistic effects from Bidentate geometries are energetically favourable monodentate ones. We present a systematic first-principles density functional theory study with dispersion corrections (DFT-D3) on experiment...

This paper presents modeling of the complex permeability spectra, fabrication and a wide frequency range characterization of a toroidal LTCC ferrite sample. A commercial ferrite tape ESL 40012 is used, and standard LTCC (Low Temperature Co-fired Ceramic) processing has been applied to the sample fabrication. The characterization was performed using a short coaxial sample holder and a vector net...

Transition metal hydroxides have attracted a lot of attention as the electrode materials for supercapacitors owing to their relatively high theoretical capacity, low cost, and facile preparation methods. However, intrinsic conductivity deteriorates high-rate performance cycling stability. Here, self-supported sheets-on-wire CuO@Ni(OH)2/Zn(OH)2 (CuO@NiZn) composite nanowire arrays were successfu...