1980
DOI: 10.1016/0025-5408(80)90054-9
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Crystallographic and dielectric properties of a new non-stoichiometric phase with a LiTaO3-related structure

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Cited by 11 publications
(4 citation statements)
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“…For these reasons, results of studies that involve the incorporation of different cations into single crystals and into stoichiometric samples should be different. On the other hand, for LiTaO solid solutions with divalent cations (Zn, Ni, Ca, Ni, Ca, Mg), different composition lines in the ternary diagram have been studied in powder samples (18,44). The upper solubility limit corresponds to the stoichiometric line, except for the LiTaO -Zn solid solution; in this case the upper solubility limit corresponds to a mechanism in which cation vacancies are created.…”
Section: Resultsmentioning
confidence: 98%
See 1 more Smart Citation
“…For these reasons, results of studies that involve the incorporation of different cations into single crystals and into stoichiometric samples should be different. On the other hand, for LiTaO solid solutions with divalent cations (Zn, Ni, Ca, Ni, Ca, Mg), different composition lines in the ternary diagram have been studied in powder samples (18,44). The upper solubility limit corresponds to the stoichiometric line, except for the LiTaO -Zn solid solution; in this case the upper solubility limit corresponds to a mechanism in which cation vacancies are created.…”
Section: Resultsmentioning
confidence: 98%
“…Several series of solid solutions of LiTaO and LiNbO with different cations have been reported (7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) because of interest in modifying the properties of both compounds by incorporation of impurities into their crystal structures. When Ti> is introduced into the LiTaO lattice, a marked influence on the Curie temperature is observed, which changes from 620-660°C for pure LiTaO to 205-500°C for doped compounds, depending on the amount of Ti> introduced in the lattice.…”
Section: Doped and Undopedmentioning
confidence: 99%
“…Esto se debe al radio iónico del Eu 3+ , aún así la dirección que sigue la región de solubilidad dentro del diagrama ternario de fases es hacia Eu 2 O 3 , lo cual implica un mecanismo de formación estequiométrico. Resultados de experimentos de luminiscencia (77,78) , por sus interesantes propiedades ópticas y ferroeléctricas (80)(81)(82)(83)(84)(85)(86)(87)(88)(89)(90)(91)(92)(93)(94)(95). La aplicación más interesante para las soluciones sólidas de LiNbO 3 con Ti 4+ es como guía de onda óptica.…”
Section: +unclassified
“…En ambas series de soluciones sólidas, la temperatura de Curie decrece al aumentar la concentración de Ti (93,94). La fase con menor temperatura de Curie es Li 1.14 Ta 0.86 Ti 0.14 O 3 (Tc=205°C) y está situada en la línea LiTaO 3 -Li 2 TiO 3 con el siguiente mecanismo de sustitución: Ta 5+ ↔ Ti 4+ + Li + , que implica un exceso de cationes (Li + ) en la red, colocados parcialmente como agregados en sitios tetraédricos y octaédri-cos (98).…”
Section: +unclassified