Low-temperature behavior of disordered magnetic impurities: Distribution of effective Kondo temperatures

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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України

Анотація

Several rare-earth compounds, low-dimensional organic conductors, and spin chains exhibit low-temperature divergences of their magnetic susceptibility and specific heat (non-Fermi-liquid behavior). Such divergences are often related to disordered ensembles of magnetic impurities in those systems. In this work the distribution function of the effective characteristic of a single magnetic impurity, the Kondo temperature, is derived. We calculate how distributions of Kondo temperatures depend on the effective dimensionality of the problem and on the concentration of impurities.

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Теми

Низкотемпеpатуpный магнетизм

Цитування

Low-temperature behavior of disordered magnetic impurities: Distribution of effective Kondo temperatures / A.A. Zvyagin, A.V. Makarova // Физика низких температур. — 2004. — Т. 30, № 6. — С. 639-643. — Бібліогр.: 39 назв. — англ.

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