Chemical Composition of Cerium and Manganese Co-Doped Lithium Niobate Single Crystal

Abstract:

Ce:Mn:LiNbO₃ single crystals were grown from the melts with different [Li]/[Nb] by top seed crystal method, while the concentration of Ce was 0.1mol% and the concentration of Mn was 0.015wt%. The concentration of each element in the crystal was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The location of the doping ion in the crystal was studied. The results revealed that Ce (or Mn) replace the location of Li in the Ce:Mn:LiNbO₃. The dependence of crystal constitute on the material proportioning is given in the paper. The exact chemical formula was given by the relationship between the composition of crystal and the raw material on the basis of the Li vacancy model.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 80-83
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.80
• Online since: September 2013
• Authors: Miao Wang, Yun Long Wang, Rui Wang
• Keywords: [Li]/[Nb], Ce:Mn:LiNbO₃, Crystal Composition, ICP Technology

References

[1] N. Broderick. Lithium niobate. Nature Materials Update, Vol. 16 (2002).

[2] S. Q. Li, S. G. Liu, Y. F. Kong, et al. Enhanced photorefractive properties of LiNbO3: Fe crystals by HfO2 codoping. Appl. Phys. Lett., Vol. 89 (2006), p.101126.

DOI: 10.1063/1.2349306

[3] C. Zaldo, C. Prieto, C. Dexpert, et al. Study of the lattice sites of Ti and Ni impurities in LiNbO3 single crystals by means of X-ray absorption spectroscopy. J. Phys.: Condens. Matter., Vol. 3 (1991), p.4135.

DOI: 10.1088/0953-8984/3/23/002

[4] S. Kar, R. Bhatt, V. Shukla, et al. Optical behaviour of VTE treated near stoichiometric LiNbO3 crystals. Solid. State. Commun., Vol. 137 (2006), p.283.

DOI: 10.1016/j.ssc.2005.11.042

[5] V. Grachev, G. Malovichko. EPR, ENDOR, and optical-absorption study of Cr3+ centers substituting for niobium in Li-rich lithium niobate crystals. Phys. Rev. B., Vol. 12 (2000), p.7779.

DOI: 10.1103/physrevb.62.7779

[6] D. Xue, K. Kitamura. Dielectric characterization of the defect concentration in lithium niobate single crystals. Solid State Commun., Vol. 122 (2002), p.537.

DOI: 10.1016/s0038-1098(02)00180-1

[7] M. Wöhlecke, G. Corradi, K. Betzler. Optical methods to characterise the composition and homogeneity of lithium niobate single crystals. Appl. Phys. B., Vol. 63 (1996), p.323.

DOI: 10.1007/bf01828734

[8] M. Wang, R. Wang, C.Y. Li, et al. Optical properties of Ce: Mn: LiNbO3 crystals with various [Li]/[Nb] ratios. J. Cryst. Growth. Vol. 310 (2008), p.3820.

[9] X.F. Yue, A. Adibi, T. Hudson, et al. Role of cerium in lithium niobate for holographic recording. J. Appl. Phys., Vol. 87 (2000), p.4051.

DOI: 10.1063/1.373043

[10] K.S. Lim, S.J. Tak, S.K. Lee, et al. Grating formation and decay in photochromic Mn, Ce: LiNbO3. J. Lumin., Vol. 94 (2001), p.73.

[11] B.H. Kang, B.K. Rhee, G.T. Jooet al. Measurements of photovoltaic constant and photoconductivity in Ce, Mn: LiNbO3 crystal. Opt. Commun., Vol. 266 (2006), p.203.