Abstract
The magnetic properties of the topological Kondo insulator SmB6 are studied in the temperature range T T*, the magnetization qualitatively corresponds to the model of decay of Kondo singlets and is determined by the Pauli paramagnetism, which includes both the linear and nonlinear contributions. In the range T < T*, the Pauli paramagnetism becomes supplemented in the threshold manner by the contribution of localized magnetic moments. The performed estimate of effective magnetic moments arising at T < T* gives anomalously high values μ* ∼ (7–14) μB ion, far exceeding the values μ* ∼ (3–5) μB expected for a separate magnetic Sm3+ ion. This is a signature of the possible spin-polaron nature of localized magnetic moments in the topological Kondo insulator SmB6.
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