Site occupancy and spectroscopic properties of Mn4+ in double perovskites, La2MgGeO6

• Published in: Optical materials Vol. 94; no. C; pp. 148 - 151
• Main Authors: Srivastava, A.M., Smith, D.J., Brik, M.G.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.08.2019; Elsevier
• Subjects: Bonding covalence; Crystal-field theory; Double perovskites; La2MgGeO6; Mn4; La2MgGeO6; Mn4; Crystal-field theory; Double perovskites; Bonding covalence

The spectroscopic properties of Mn4+ (3 d3) in the La2MgGeO6 double perovskite is the subject of this investigation. The optical data have been used to perform detailed crystal field calculation of the Mn4+ energy level scheme. In La2GeMgO6, the Mn4+ can occupy either the octahedral Mg2+ or the Ge4+...