Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1805631 | Journal of Magnetism and Magnetic Materials | 2006 | 4 Pages |
Abstract
We calculate the temperature-dependent energy gap in the magnetic excitations spectrum of the two-dimensional antiferromagnet in the presence of a staggered magnetic field, using the nonlinear sigma model.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
M.P.P. Fonseca, A.S.T. Pires,