Large dielectric constants and massive carriers in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">La</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">CuO</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
D. ReagorDepartment of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles, California 90024Eric T. AhrensDepartment of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles, California 90024Sang‐Wook CheongDepartment of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles, California 90024A. MiglioriDepartment of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles, California 90024Z. FiskDepartment of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles, California 90024
1989lv
ABI
Аннотация
We report measurements of the conductivity and dielectric constant as a function of frequency and temperature on samples of ${\mathrm{La}}_{2}$${\mathrm{CuO}}_{4}$ from dc to 100 GHz. An analysis of the frequency dependence of the complex conductivity indicates that the high-frequency dielectric constant is large (\ensuremath{\simeq}50) and weakly temperature dependent. The dc charge carriers are massive (1100${\mathrm{m}}_{\mathrm{e}}$), weakly damped, and partially pinned.
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