Frequency-dependent dielectric characteristics of Tl–Ba–Ca–Cu–O bulk superconductor
作者： Ş Çavdar , H Koralay , N Tuğluoğlu , A Günen
DOI: 10.1088/0953-2048/18/9/010
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摘要: A ceramic sample of a layered cuprate Tl2Ba2Ca2Cu3Ox and Tl2Ba2Ca1Cu2Ox, so-called Tl-based 2223 2212 compounds, was investigated by the measurement dielectric constants (e' e''), loss (tanδ), conductivity (σac) as function temperature (80–300 K) frequency (100 Hz–10 MHz). negative capacitance phenomenon has been observed it is believed that effect due to polarization effect. The constant calculated from capacitance. (e') (tanδ) show strong dispersions at lower frequencies. properties were found have dependence.
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