Analysis of the optical band positions for manganese (IV) ions in trigonal barium titanium hexafluoride and barium silicon hexafluoride crystals. Issue 8 (14th September 2018)

• Record Type: Journal Article
• Authors: Li, Xiao-Wu; Mei, Yang; Liu, Hong-Gang; Zheng, Wen-Chen
• Is Part Of: Spectroscopy letters. Volume 51:Issue 8(2018)
• Page Start: 422
• Page End: 425
• Publication Date: 2018-09-14
• Subjects: Barium titanium (silicon) hexafluoride [BaMF6 (M = Ti -- Si)] -- crystal- and ligand-field theory -- diagonalization method -- manganese (IV) -- optical spectra; Spectrum analysis -- Periodicals; 543.5
• DOI: 10.1080/00387010.2018.1471609
• Languages: English
• ISSNs: 0038-7010

Abstract

Abstract: The optical band positions (or crystal field energy levels) of manganese (IV) ions in trigonal barium titanium hexafluoride and barium silicon hexafluoride crystals are computed from the full diagonalization (of energy matrix) method founded on the two-spin–orbit-parameter model which consists of the effects from both the spin–orbit parameters of d n ion and ligand ions. The computed results are in rational agreement with the experimental values. It is found that the large difference of first excited state splitting Δ E ( 2 E ) between the manganese (IV)-doped barium titanium hexafluoride and barium silicon hexafluoride crystals is owing mainly to the great difference of trigonal distortion between the fluorine octahedral clusters in the two host crystals.