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- W1612040768 abstract "${mathrm{Mn}}_{5}{mathrm{Si}}_{3}{mathrm{C}}_{x}$ films exhibit antiferromagnetic or ferromagnetic behavior depending on the carbon doping level $x$. We report a detailed electronic-transport study of films prepared with different $x$. All films exhibit metallic behavior of the temperature-dependent resistivity $ensuremath{rho}(T)$ with a logarithmic increase towards low temperatures attributed to the structural disorder and the accompanied scattering of conduction electrons by two-level systems. Below $1phantom{rule{0.3em}{0ex}}mathrm{K}$, the Kondo-type behavior $ensuremath{rho}(T)ensuremath{sim}ensuremath{-}mathrm{ln}phantom{rule{0.2em}{0ex}}T$ shows a crossover to Fermi-liquid behavior $ensuremath{rho}ensuremath{sim}ensuremath{-}{T}^{2}$ independent of the type of magnetic order. The magnetoelectronic properties such as Hall effect and magnetoresistance show clear differences characteristic for the different magnetically ordered phases, i.e., antiferromagnetic vs ferromagnetic." @default.
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- W1612040768 date "2008-03-11" @default.
- W1612040768 modified "2023-09-25" @default.
- W1612040768 title "Electronic transport in magnetically ordered<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mi mathvariant=normal>Mn</mml:mi><mml:mn>5</mml:mn></mml:msub><mml:msub><mml:mi mathvariant=normal>Si</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant=normal>C</mml:mi><mml:mi>x</mml:mi></mml:msub></mml:mrow></mml:math>films" @default.
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- W1612040768 doi "https://doi.org/10.1103/physrevb.77.104414" @default.
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