Abstract
Transport properties of single crystalline quasi-one-dimensional fibers of ${\mathrm{Ta}}_{4}{\mathrm{Te}}_{4}\mathrm{Si}$ are studied. The temperature dependence of the resistivity indicates metallic behavior with a residual resistivity ratio of approximately 3. Low-temperature magnetoresistance is positive and anisotropic. The results are interpreted in the framework of the three-dimensional weak localization theory with an anisotropic diffusion constant. Dephasing scattering lengths extracted from the magnetoresistance data are well described by a theory of the electron-electron interaction in disordered metals.
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