Please use this identifier to cite or link to this item:
|Title:||The magnesium diffused layer characteristics of a lithium niobate single crystal with magnesium-ion indiffusion||Authors:||Que, W.
Electron probe microanalysis
LiNbO3 single crystal
X-ray diffraction analysis
|Issue Date:||Mar-1998||Citation:||Que, W.,Lim, S.,Zhang, L.,Yao, X. (1998-03). The magnesium diffused layer characteristics of a lithium niobate single crystal with magnesium-ion indiffusion. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers 37 (3 A) : 903-907. ScholarBank@NUS Repository.||Abstract:||A Mg-ion indiffusion process was applied to lithium niobate single crystal substrates with a deposited magnesium oxide thin film. By means of electron probe microanalysis and X-ray diffraction analysis, the Mg concentration distribution along the depth of the magnesium diffused layer was obtained and the activation energy for Mg-ion indiffusion was determined to be 288 KJ/mol. It was also determined that the magnesium diffused layer exhibits a crystal structure of an unknown compound from the Mg-Li-Nb-O ternary system. It is proposed that this unknown compound and MgNb2U6, which form during a solid state reaction between the thin layer of MgO and the lithium niobate crystal in a Li2O-rich atmosphere, are the real sources for Mg-ion indiffusion into lithium niobate. The high activation energy and the appearance of this unknown compound in the magnesium diffused layer suggest that Mg-ions diffuse substitutionally into the lithium niobate crystal. Mechanisms causing a decrease in the refractive index of the Mg diffused layer are also discussed.||Source Title:||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers||URI:||http://scholarbank.nus.edu.sg/handle/10635/92802||ISSN:||00214922|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 20, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.