Low energy SIMS study on multi-built-up layer of cobalt(II) stearate

The surface of multi-built-up layer of cobalt(II) stearate on copper substrate has been studied by means of low energy SIMS. The sampling surfaces were impacted with 700 eV, 8 × 10^?7 Å/cm², Ar⁺ ions. In each group (odd-numbered accumulated and even-numbered accumulated samples), the ⁵⁸Co⁺ intensities at the initial bombardment responded to the number of the accumulation, respectively. The ⁵⁸Co⁺ ion intensities from even-numbered accumulated samples were observed more than the expected values from a proportionality between the accumulation number and ⁵⁸Co⁺ intensities.