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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Raman Spectroscopy of the Solid Solution Limit in <TEX>$Li_{1-X}Al_{2X}Ta_{1-X}O_3$</TEX> System

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.1, pp.115-120
Kim, Chong-Don
Hong, Kug-Sun
Joo, Gi-Tae
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Abstract

The upper limit of solid solution of <TEX>$Al_2O_3$</TEX> in <TEX>$LiTaO_3$</TEX> was investigated using X-ray diffraction and Raman spectroscopy. By substituting cations in <TEX>$LiTaO_3$</TEX> with <TEX>$Al^{3+}$</TEX>, the melting temperature was lowed and the ferroelectric properties can be improved. It is easier at lower temperature to fabricate the single crystal used for SAW filters and IR sensors. From the measured lattice constants and Raman band broadening, the solubility limit was X

keywords
<TEX>$LiTaO_3$</TEX>, Raman Spectroscopy, solid solution


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