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Confined Magnon Modes and Anisotropic Exchange Interaction in Ultrathin Co Films.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Berlin :
Logos Verlag Berlin,
2017.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Intro; 1 Introduction; 2 Background; 2.1 Magnons in localized moment systems; 2.1.1 The quasi-classical counterpart of a magnon; 2.1.2 A magnon in quantum mechanics; 2.1.3 Magnons in thin ferromagnetic films; 2.2 Stoner excitations in itinerant-electron ferromagnets; 2.3 Electron scattering; 2.3.1 Low-energy inelastic electron scattering; 2.3.2 Spin-dependent effects in elastic electron scattering; 3 Experimental techniques; 3.1 Spin-polarized electron energy loss spectroscopy; 3.1.1 Spin polarized inelastic electron scattering; 3.1.2 Principles of SPEELS; 3.2 The experimental setup.
- 3.2.1 The ultra high vacuum system3.2.2 SPEEL-spectrometer; 3.2.3 The GaAs-photocathode; 4 Results; 4.1 The Co/Ir(001) system; 4.1.1 Sample preparation and characterization; 4.1.2 MOKE measurements; 4.1.3 SPEELS measurements; 4.2 The Co/Cu(001) system; 4.2.1 SPEELS measurements; 4.3 The Co/Pt(111) system; 4.3.1 Sample preparation and characterization; 4.3.2 MOKE measurements; 4.3.3 SPEELS measurements; 5 Discussion; 5.1 Film structure and substrate dependence; 5.1.1 ""Acoustic"" magnons in Co and Fe films; 5.1.2 Confined magnon modes in the 3 ML Co films.
- 5.2 Confined magnon modes in the Heisenberg model5.3 Layer-dependent exchange parameters; 5.4 Impact of the electronic structure on the magnons; 5.5 The magnon lifetime; 5.5.1 ""Acoustic"" magnons in Co and Fe films; 5.5.2 Confined magnon modes; 6 Conclusions and outlook; A Description of spin-polarized electrons.