Title :
Antiferromagnetic planar-rotator model. Extension to next-nearest interaction
Author_Institution :
Dept. of Exp. Phys., Safarik (P.J.) Univ., Kosice
fDate :
3/1/1994 12:00:00 AM
Abstract :
The mean-field analysis of the antiferromagnetic planar (XY) model on square lattice with the nearest- and second-nearest neighbour interaction without and under magnetic field is carried out. A number of phase transitions are observed, both of the first- and second-order and also multicritical points are present in the system
Keywords :
X-Y model; antiferromagnetism; magnetic transitions; XY model; antiferromagnetic planar-rotator model; mean-field analysis; multicritical points; next-nearest interaction; phase transitions; square lattice; Anisotropic magnetoresistance; Antiferromagnetic materials; Impedance; Lattices; Magnetic anisotropy; Magnetic fields; Magnetic separation; Perpendicular magnetic anisotropy; Physics; Tiles;
Journal_Title :
Magnetics, IEEE Transactions on
