Low Temperature Physics: 38, 669 (2012); https://doi.org/10.1063/1.4736616 (2 pages)
Ordering in a narrow-band magnetic metal with exchange interaction
Kharkiv National Academy of Municipal Economy, ul. Revolution, 12, Kharkov, 61002, Ukraine
Received May 10, 2012
The temperature of magnetic ordering ΘC of systems with a double exchange is calculated by using the model of interacting spin waves. A comparative analysis is performed with the calculations by the model of molecular field and the spin-wave one. A maximum of the magnetic transition temperature ΘC is obtained for electronic concentration x = 0.35, that agrees with the experiment (x = 0.33) better than the calculations of ΘC in the model of molecular field and the spinwave one.
PACS: 75.10.Lp Band and itinerant models;
Key words: magnon, relative magnetized, model of the dynamic molecular field, Green function.