The Impurity Magnetic Susceptibility of Semiconductors in the Case of Direct Exchange Interaction in the Ising Model
| Autor: | N. A. Bogoslovskiy, N. S. Averkiev, P. V. Petrov |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Curie–Weiss law Materials science Spin glass Magnetic moment Condensed matter physics Exchange interaction Condensed Matter Physics 01 natural sciences Magnetic susceptibility Electronic Optical and Magnetic Materials Curie's law Ferromagnetism 0103 physical sciences Condensed Matter::Strongly Correlated Electrons Ising model 010306 general physics |
| Zdroj: | Physics of the Solid State. 61:2005-2009 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783419110088 |
| Popis: | The numerical simulation was applied to study the temperature dependence of the impurity magnetic susceptibility. The direct exchange interaction of the impurity magnetic moments randomly distributed in space was considered within the Ising model. When the temperature in a system decreases, the magnetic susceptibility behavior in this system ceases to comply with the Curie law, which is associated with the formation of a spin glass phase. It is shown that the expression of the preexponential factor in the formula for the direct exchange interaction considerably influences the temperature dependence of the magnetic susceptibility only in the case of ferromagnetic exchange. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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