Narrow Results

In the given work, compliance with the distribution law of defect vacancies formed in ZrO₂ crystal irradiated with 2MeV energy H${}^{+}$ ions at room temperature was studied (The fluxes density for the H${}^{+}$ ion was chosen to be 1017 ions/cm²). The effect of H${}^{+}$ ions with fluxes density at different temperatures (500^∘C, 600^∘C, 700^∘C, 800^∘C and 900^∘C) on W and S parameters was determined. The mechanism of formation of nanoclusters in the ZrO₂ crystal structure under the influence of H${}^{+}$ radiation, the vacancy cluster formed by 2Zr vacancies and 4O vacancies, and its location in triple spaces with hydrogen atoms were determined. 2Zr and 4 vacancies were determined by the $\tau$ values of the vacancy clusters growing under the influence of radiation and the positions of hydrogen atoms in the 1VZr, 1VO, di-VZrO triple-VZrO₂ vacancy groups.

In this paper, formation of defects/defect clusters in nickel nanowires (Ni-NWs) due to interaction of a 60 kilo-electron-volt (keV) beam of proton (H${}^{+})$ ions is studied. Ni-NWs are exposed to various fluencies of H${}^{+}$ ions ranging between $1.5\times 10^{15}$ and $1.5\times 10^{17}$ions/cm². The analysis of pristine and H${}^{+}$ ion-irradiated Ni-NWs samples is mainly done using transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. Stopping range of ions in matter (SRIM) simulation software is employed to verify the production of defect clusters in Ni-NWs theoretically. Furthermore, insight of creation of defects in Ni-NWs due to interaction of low energy H${}^{+}$ ions in keV range is made using the theory of collision cascade effect. The study of defect clusters induced in Ni-NWs under H${}^{+}$ ions beam irradiation is essential for application of Ni-NW-based nanodevices in harsh environment containing plenty of H${}^{+}$ ions such as for use in spacecraft equipped for space missions.