Spectral analysis and crystal-field fitting of Nd3+ doped in LuTaO4. Issue 20 (3rd October 2016)

• Record Type: Journal Article
• Authors: Gao, J.Y.; Zhao, Y.P.; Zhang, Q.L.; Wang, X.F.; Liu, W.P.; Ding, S.J.; Sun, D.L.; Yin, S.T.
• Is Part Of: Journal of materials research. Volume 31:Issue 20(2016)
• Page Start: 3255
• Page End: 3261
• Publication Date: 2016-10-03
• Subjects: LuTaO4, -- emission spectra, -- excitation spectra, -- energy levels, -- crystal-field fitting; Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1557/jmr.2016.349
• Languages: English
• ISSNs: 0884-2914

Abstract

Abstract: Abstract : The polycrystalline Nd 3+ -doped rare earth orthotantalate LuTaO4 was synthesized with high temperature solid-state reaction method, and the structure was determined by applying the Rietveld refinement to its x-ray diffraction. Also, the emission and excitation spectra at 7.6 K have been analyzed. The free-ions and crystal-field parameters were fitted to the experimental energy levels with the root mean square deviation of 14.6 cm −1 . According to the crystal-field calculations, 152 Stark energy levels of Nd 3+ were assigned. Finally, the fitting results of free-ions and crystal-field parameters were compared with those already reported for Nd 3+ :YAlO3 . The results indicate that the free-ions parameters are similar to those of the Nd 3+ in LuTaO4 and YAlO3 hosts except for the values of two-body electrostatic parameter γ, and the 2-rank crystal-field parameters of two hosts have relatively large differences while other crystal-field parameters have been similar to each other. Moreover, the crystal-field interaction of Nd 3+ in LuTaO4 is stronger than that in YAlO3 .