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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72591

    Title: Effect of SnO2 addition on the dielectric properties of Ba2Ti9O20 ceramics in the high frequency regime
    Authors: Liu, Hsiang-Lin;Chen, Hsin-I;Tzeng, Yuan-Tai;Chia, Chia-Ta;Hsu, Kuo-Chien;Chi, Chen-Chung;Chang, Chi-Ben;Leou, Keh-Chyang;Lin, I-Nan
    Contributors: 淡江大學物理學系
    Date: 2006-11
    Issue Date: 2011-10-24 10:36:42 (UTC+8)
    Publisher: College Park: American Institute of Physics
    Abstract: The effect of SnO2 addition on the high-frequency dielectric properties of Ba2Ti9O20 ceramics has been investigated using terahertz time-domain spectroscopy, far-infrared (FIR) reflectivity, and Raman-scattering measurements. The dielectric constants determined from the terahertz and FIR spectra are smaller than that taken in the microwave frequency region. In contrast, the increase of the dielectric loss with increasing frequency is due to some resonance modes above 1 THz. Importantly, our data clearly show that the SnO2 (2.4 mole %) addition degraded the dielectric properties of Ba2Ti9O20 ceramics, which is ascribed to the deterioration on the coherency of lattice vibrational characteristics for these materials.
    Relation: Journal of Applied Physics 100(9), 094104(5pages)
    DOI: 10.1063/1.2363605
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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