Автор |
G A Murray |
Дата выпуска |
1966-09-01 |
dc.description |
The critical concentration for a dilute Heisenberg ferromagnet is determined by finding the concentration for which the ferromagnetic ground state is unstable with respect to the formation of long-wavelength spin waves. An upper bound to the spin-wave energies is determined using a variational procedure and this is used to obtain a lower bound on the critical concentration. This result is considerably higher than the corresponding Ising result. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The determination of the critical concentration for a dilute heisenberg ferromagnet from the low-energy spin waves |
Тип |
paper |
DOI |
10.1088/0370-1328/89/1/317 |
Print ISSN |
0370-1328 |
Журнал |
Proceedings of the Physical Society |
Том |
89 |
Первая страница |
111 |
Последняя страница |
118 |
Аффилиация |
G A Murray; Department of Theoretical Physics, Clarendon Laboratory, Oxford |
Выпуск |
1 |