Abstract
Abstract This paper reports the study of the magnetotransport properties of polycrystalline CdO thin films prepared by the sol–gel method. Both the sheet resistance and electron density as a function of temperature indicate that our samples are degenerate semiconductors. The weak localization (WL) effect is observed in the low temperature range. Applying the two-dimensional WL theory, we have extracted the dephasing length and a relatively large value (the maximum gets to 151 nm at 2 K) is obtained. The temperature dependence of the extracted dephasing length can be well described by the electron–electron scattering process, indicating that the electron–electron scattering is main dephasing mechanism for electrons.
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