The low temperature critical properties and crossovers of a spin 1/2 planar ferromagnet in a longitudinal magnetic field are explored in 4-e dimensions in terms of an anisotropic action, suitable to describe the spin model in the low temperature regime. This is performed adopting a procedure whivh combines a preliminary averaging over dynamic degrees of freedom and a next static Wilson renormalization group transformation.
Low temperature critical properties and crossovers of a spin 1/2 planar ferromagnet in 4-e dimensions / M. T., Mercaldo; CARAMICO D'AURIA, Alvaro; L., DE CESARE; I., Rabuffo. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 77:18(2008), pp. 184424-1-184424-14. [10.1103/PhysRevB.77.184424]
Low temperature critical properties and crossovers of a spin 1/2 planar ferromagnet in 4-e dimensions
CARAMICO D'AURIA, ALVARO;
2008
Abstract
The low temperature critical properties and crossovers of a spin 1/2 planar ferromagnet in a longitudinal magnetic field are explored in 4-e dimensions in terms of an anisotropic action, suitable to describe the spin model in the low temperature regime. This is performed adopting a procedure whivh combines a preliminary averaging over dynamic degrees of freedom and a next static Wilson renormalization group transformation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
