Abstract:
Surface morphology and structural-phase changes in polycrystalline V$_2$O$_5$ under the influence of a high-power nanosecond ion beam with a current density of 20–100 A/cm$^2$ were studied. It was revealed that a single action of the beam with a current density of 50 A/cm$^2$ leads to formation on the V$_2$O$_5$ surface of a continuous layer of nanoplates with a typical size of $\sim$ 1 $\mu$m across and up to $\sim$ 40 nm thick. At the current density of 100 A/cm$^2$, the layers of nanoplates are formed around cracks in the surface layer of V$_2$O$_5$. Possible mechanisms of formation of nanoplates are discussed.
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