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COLOR CENTERS IN LiNbO3 CRYSTALS |
| FENG Xi-qi;HE Xue-mei;SHE Wei-long |
| Shanghai Institute of Ceramics, Academia Sinica, Shanghai |
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| Cite this article: |
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FENG Xi-qi, HE Xue-mei, SHE Wei-long 1985 Chin. Phys. Lett. 2 417-420 |
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Abstract Color centers stable at room temperature with absorption bands peaking at 365m, 460nm, 540nm and 620nm were produced in LiNbO3 crystals by γ-radiation, Measurements with XPS (X-ray photoelectron energy spectroscopy) and ESR (electron spin resonance) techniques show that the concentration of Nb4+ ion is high in the reduced LiNbO3 crystal but no typical ten-line Nb4+ ESR spectrum appears. The experimental results can be explained by the Nb4+ ion-F+ center association model.
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Published: 01 September 1985
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