Open Access
Fig. 1
Download original image
Energy levels of the Fe2+ and Fe3+ ions. The configurations of the energy levels that straddle the SI threshold are presented in addition to the ground and first excited configurations of the Fe2+ and Fe3+ ions.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.