Publication: Correlation between ion hopping conductivity and near constant loss in ionic conductors
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2004-04-16
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American Physical Society
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Abstract
For ionic conductivity relaxation in ionically conducting materials we predict in the framework of the coupling model that the magnitude of the ubiquitous near constant loss correlates with the activation energy E_(a) for independent ion hopping. Using experimental data of a variety of ionic conductors, this correlation has been borne out. The model also explains the observed correlation between the magnitude of the near constant loss and the value of the dc conductivity at room temperature, as well as the temperature dependence for the near constant loss.
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© 2004 The American Physical Society. C.L. and A.R. thank J. Santamaría for fruitful discussions. Financial support from CICYT Grant No. MAT2001-3713- C04 is acknowledged. The work performed at NRL was supported by ONR.
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