The effect of native defects on the domain structures of LiNbO3:Fe - A case study by means of the addition of MgO and K2O to the congruent melt

V. Bermúdez; P. S. Dutta; M. D. Serrano; E. Dréguez

doi:10.1088/0953-8984/9/28/008

The effect of native defects on the domain structures of LiNbO₃:Fe - A case study by means of the addition of MgO and K₂O to the congruent melt

V. Bermúdez, P. S. Dutta, M. D. Serrano, E. Dréguez^*

^*Corresponding author for this work

Universidad Autónoma de Madrid

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

The effect of native defects on the domain structure of LiNbO₃:Fe has been investigated. To reduce the number of native defects, two methodologies have been adopted: firstly, co-doping with Mg: and secondly, the addition of K₂O to the congruent melt. When grown from congruent melts, LiNbO₃:Fe has a multi-domain nature. Co-doping with Mg changes the domain structure, although the crystals are still multi-domain. On addition of K₂O, single-domain crystals are obtained. The change in domain structure brought about by doping with Mg is due to compensation of the stoichiometric defects. On the other hand, reduction in the number of intrinsic defects due to change in the Li/Nb ratio in the crystal as a result of the addition of K₂O to the melt is responsible for the mono-domain structure.

Original language	English
Pages (from-to)	6097-6101
Number of pages	5
Journal	Journal of Physics Condensed Matter
Volume	9
Issue number	28
DOIs	https://doi.org/10.1088/0953-8984/9/28/008
Publication status	Published - 14 Jul 1997
Externally published	Yes

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title = "The effect of native defects on the domain structures of LiNbO3:Fe - A case study by means of the addition of MgO and K2O to the congruent melt",

abstract = "The effect of native defects on the domain structure of LiNbO3:Fe has been investigated. To reduce the number of native defects, two methodologies have been adopted: firstly, co-doping with Mg: and secondly, the addition of K2O to the congruent melt. When grown from congruent melts, LiNbO3:Fe has a multi-domain nature. Co-doping with Mg changes the domain structure, although the crystals are still multi-domain. On addition of K2O, single-domain crystals are obtained. The change in domain structure brought about by doping with Mg is due to compensation of the stoichiometric defects. On the other hand, reduction in the number of intrinsic defects due to change in the Li/Nb ratio in the crystal as a result of the addition of K2O to the melt is responsible for the mono-domain structure.",

author = "V. Berm{\'u}dez and Dutta, {P. S.} and Serrano, {M. D.} and E. Dr{\'e}guez",

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T1 - The effect of native defects on the domain structures of LiNbO3:Fe - A case study by means of the addition of MgO and K2O to the congruent melt

AU - Bermúdez, V.

AU - Dutta, P. S.

AU - Serrano, M. D.

AU - Dréguez, E.

PY - 1997/7/14

Y1 - 1997/7/14

N2 - The effect of native defects on the domain structure of LiNbO3:Fe has been investigated. To reduce the number of native defects, two methodologies have been adopted: firstly, co-doping with Mg: and secondly, the addition of K2O to the congruent melt. When grown from congruent melts, LiNbO3:Fe has a multi-domain nature. Co-doping with Mg changes the domain structure, although the crystals are still multi-domain. On addition of K2O, single-domain crystals are obtained. The change in domain structure brought about by doping with Mg is due to compensation of the stoichiometric defects. On the other hand, reduction in the number of intrinsic defects due to change in the Li/Nb ratio in the crystal as a result of the addition of K2O to the melt is responsible for the mono-domain structure.

AB - The effect of native defects on the domain structure of LiNbO3:Fe has been investigated. To reduce the number of native defects, two methodologies have been adopted: firstly, co-doping with Mg: and secondly, the addition of K2O to the congruent melt. When grown from congruent melts, LiNbO3:Fe has a multi-domain nature. Co-doping with Mg changes the domain structure, although the crystals are still multi-domain. On addition of K2O, single-domain crystals are obtained. The change in domain structure brought about by doping with Mg is due to compensation of the stoichiometric defects. On the other hand, reduction in the number of intrinsic defects due to change in the Li/Nb ratio in the crystal as a result of the addition of K2O to the melt is responsible for the mono-domain structure.

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The effect of native defects on the domain structures of LiNbO₃:Fe - A case study by means of the addition of MgO and K₂O to the congruent melt

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