Structures, electronic and magnetic properties of Mn and Mn2 doped stoichiometric (GaO)n clusters with n = 1-7 are studied in the framework of density functional theory. Doping of a Mn atom is found to be energetically favorable in (GaO)n clusters and the equilibrium configurations are found to be determined by the metal–oxygen interactions. Mn prefers to maximize the number of Mn–O bonds by se...

High nitrogen-doped carbon/Mn3O4 composites were synthesized by annealing nitrogen-rich Mn-based coordination polymer particles, and investigated by electron microscopy, X-ray diffraction, and electrochemical experiments. To assess the performance of high nitrogen-doped hybrids as electrode materials in supercapacitors, cyclic voltammetry and galvanostatic charging-discharging measurements are ...

In this work, the influence of Cr and Mn impurity atoms on electronic structure magnetic properties 3C–SiC was analyzed by carrying out first-principles calculations using GGA + U method, Si vacancies co-doped system also considered. The results showed systems mono-doped with to be spin-polarized had total moments 3.05 5.00 μB, respectively. ferromagnetic state each various (Cr, Mn)-co-doped de...

Electrical control over the magnetic states of doped semiconductor nanostructures could enable new spin-based information processing technologies. To this end, extensive research has recently been devoted to examination of carrier-mediated magnetic ordering effects in substrate-supported quantum dots at cryogenic temperatures, with carriers introduced transiently by photon absorption. The relat...

ZnO and Mn-ZnO nano powders were prepared by the sol-gel auto combustion method. The products were characterized by X-ray diffraction (XRD), energy dispersive analysis of X-ray (EDX) and scanning electron microscopy (SEM). Structural and morphological properties of nano particles were investigated and the average crystalline size of ZnO and Mn-doped ZnO was obtained 44 and 51 nm, respectively. ...

Zinc Sulphide (ZnS) nanoparticles doped with different concentrations of Mn (0%, 2%, 4%, 6%, 8%, 10%) have been synthesized by chemical co-precipitation method using polyvinyl alcohol (PVA) as a capping agent to control the particle growth. The structural characterizations of as synthesized nanoparticles are determined by X-ray diffraction (XRD) which showed cubic zinc blende structures with av...

ZnS:Cu,Cl,Mn,Te, which shows red AC powder electroluminescence (ACPEL) emission, was synthesized using a conventional wet synthesis and a sealed vessel method. The photoluminescence (PL) and ACPEL were characterized. After the second firing, 0.5 wt% tellurium (Te)-doped ZnS: Cu,Cl,Mn,Te phosphor shows almost red PL emission from the T1– A1 transition of Mn 21 ions, which are affected by the Te....