Crystal field parameters for Yb3+ ions at orthorhombic centers in garnets-Revisited

► Problems due to mixing up of CFP properties in Wybourne and Stevens notations clarified. ► Superposition model analysis carried out for Yb3+ in YbAG and YbGG. ► Usefulness of CFP standardization and multiple correlated fitting technique shown. ► Principal axis used in EPR correlated with the axis used in SPM analysis. ► Present methodology can be applied to other RE3+ ions doped into garnets.