Table 3 Cosegregation (B-site metal with an oxygen vacancy) and Ni↔deposited metal exchange energies (in electron volts) on transition metal–doped La0.5Sr0.5TiO3(110).

BulkM-Ov-M cosegregation energy (eV)Ni↔TM exchange energy (eV)
Ti−0.12−3.20
Cr−1.05−2.27
Fe−1.45−1.87
Mn−1.89−1.43
Co−2.92−0.40
Ni−3.320
Cu−4.321.00