IFIR 05409
INSTITUTO DE FISICA DE ROSARIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Spin dynamics of the XXZ triangular antiferromagnetic model: Application to Ba_3CoSb_2O_9
Autor/es:
E. A. GHIOLDI; A. MEZIO; L.O. MANUEL; R. R. P. SINGH; J. OITMAA; A. E. TRUMPER
Lugar:
Trieste
Reunión:
Conferencia; Conference on Frustration, Disorder and Localization: Statics and Dynamics; 2015
Institución organizadora:
The Abdus Salam International Centre For Theoretical Physics
Resumen:
We investigate the spin dynamics of the triangular-lattice antiferromagnetic XXZ model using series expansion and mean eld Schwinger boson approaches. The single-magnon spectrum computed with series expansion exhibits rotonic minima at the middle points of the edges of the Brillouin zone, for all values of the anisotropy parameter in the range 0
