Abstract
An isotropic half-metallic double-exchange magnet with a direct superexchange coupling between the localized spins is studied within the spin-wave (1/S) expansion. The momentum dependence of the spin-wave spectrum (including quantum corrections) in the ferromagnetic phase at T=0 is investigated. Based on the calculated spin-wave spectrum of the canted state, it is shown that as long as the external magnetic field is not too strong, the double exchange-superexchange competition does not result in a stabilization of a two-sublattice canted spin ordering.
| Original language | English |
|---|---|
| Pages (from-to) | 5804-5806 |
| Number of pages | 3 |
| Journal | Journal of Applied Physics |
| Volume | 87 |
| Issue number | 9 II |
| DOIs | |
| State | Published - May 2000 |
| Externally published | Yes |
| Event | 44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States Duration: 15 Nov 1999 → 18 Nov 1999 |
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