Scrutinizing Hall effect in Mn$_{1-x}$Fe$_{x}$Si: Fermi surface evolution and hidden quantum criticality
Autor: | Glushkov, V. V., Lobanova, I. I., Ivanov, V. Yu., Voronov, V. V., Dyadkin, V. A., Chubova, N. M., Grigoriev, S. V., Demishev, S. V. |
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Jazyk: | angličtina |
Rok vydání: | 2015 |
Předmět: | |
Popis: | Separating between ordinary (OHE) and anomalous (AHE) Hall effect in the paramagnetic phase of Mn$_{1-x}$Fe$_{x}$Si reveals OHE sign inversion associated with the hidden quantum critical (QC) point $x^*\sim0.11$. The semimetallic behavior at intermediate Fe content leads to verifiable predictions in the field of fermiology, magnetic interactions and QC in Mn$_{1-x}$Fe$_{x}$Si. The change of electron and hole concentrations is considered as a driving force for tuning the QC regime in Mn$_{1-x}$Fe$_{x}$Si via modifying of RKKY exchange interaction within the Heisenberg model of magnetism. 5 pages, 4 figures, 1 supplement |
Databáze: | OpenAIRE |
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