Detailseite
Bose-Einstein condensation of magnons in magnetic films
Antragsteller
Professor Dr. Sergej O. Demokritov, Ph.D.
Fachliche Zuordnung
Experimentelle Physik der kondensierten Materie
Förderung
Förderung von 2006 bis 2012
Projektkennung
Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 16851434
Subject of the project is magnons in a non-equilibrium state, created in a ferromagnet using external pumping. The main goal of the project is experimental observation of the Bose-Einstein-Condensation (BEC) of the magnon gas, i.e., the effect, which has been recently predicted theoretically. The distribution of magnons over the wavevector space and their possible condensation close to a given value of the wavevector will be studied by means of Brillouin light scattering. The utilization of the novel Brillouin light scattering technique with a sensitivity to the phase of magnon, very recently developed by us, allows the determination of the coherence characteristics of the magnon gas and the unambiguous corroboration of the BEC-transition.
DFG-Verfahren
Sachbeihilfen
Großgeräte
High-precision positioning system
Gerätegruppe
5900 Optische Bänke einschl. mechanischer Bauelemente