Long-range effective interactions and spin canting: A model for amorphous magnetism
| Autor: | W. M. Saslow, G. N. Parker |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
Physics
Range (particle radiation) Spin polarization Condensed matter physics Magnetism Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Amorphous solid Condensed Matter::Materials Science symbols.namesake Ferromagnetism symbols Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Hamiltonian (quantum mechanics) Spin canting |
| Zdroj: | Physical review. B, Condensed matter. 38(16) |
| ISSN: | 0163-1829 |
| Popis: | The onset of canting for a ferromagnet with one and two antiferromagnetic defect bonds has been studied analytically. For individual negative defect bonds which are unable to cause canting, there is a long-range effective dipolar-like interaction which determines whether or not the system will cant. An effective Hamiltonian is obtained which applies more generally. A canted state at low temperatures, but a collinear state at somewhat higher temperatures, can be expected on the basis of this effective Hamiltonian. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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