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Large dielectric constants and massive carriers in La2CuO4
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https://doi.org/10.1103/physrevlett.62.2048Abstract
We report measurements of the conductivity and dielectric constant as a function of frequency and temperature on samples of La2CuO4 from dc to 100 GHz. An analysis of the frequency dependence of the complex conductivity indicates that the high-frequency dielectric constant is large (≃50) and weakly temperature dependent. The dc charge carriers are massive (1100me), weakly damped, and partially pinned.
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