Signatures of the Kondo effect in Fe-diluted tungsten ditelluride single crystal
Abstract
This paper presents the results of the synthesis, characterization, and transport properties of bulk single crystalline tungsten ditelluride WTe2 doped with 3% iron. Our discussion begins with a comparison between pure WTe2 and W0.97Fe0.03Te2, where we report significant modifications in the electrical, magneto-, and Hall resistivities resulting from doping. A distinctive feature of W0.97Fe0.03Te2 is the presence of a low-temperature minimum in the temperature dependence of its electrical resistivity, while below 10 K, the resistivity increases almost logarithmically with decreasing temperature. We demonstrate that the region encompassing the resistivity minimum can be roughly described by the Hamann equation. Moreover, the field dependence of magnetoresistance exhibits an almost quadratic negative behavior at low temperatures. We attribute these features to the Kondo effect, arising from the peculiarities of conduction electron scattering on magnetic Fe-atom impurities.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (7)
B. M. Fominykh
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,
A. N. Perevalova
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,
V. Yu. Irkhin
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,
S. V. Naumov
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,
A. Stepanov
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,
E. B. Marchenkova
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,
V. V. Marchenkov
M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences , S. Kovalevskaya str., 18, Ekaterinburg 620108,