Frustrated Honeycomb Heisenberg Antiferromagnet: A Schwinger Boson Approach

Autor: Mattsson, Ann, Fröjdh, Per, Einarsson, Torbjörn

We analyze the frustrated Heisenberg antiferromagnet defined on a honeycomb lattice using a Schwinger-boson mean-field theory. The spin-wave velocity and the susceptibility are presented as functions of the strength of the frustrating interaction for

Externí odkaz: http://arxiv.org/abs/cond-mat/9310063

Directed Percolation and Other Systems with Absorbing States: Impact of Boundaries.

Autor: Fröjdh, Per, Howard, Martin, Lauritsen, Kent Bækgaard

Publikováno v: International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics; 5/20/2001, Vol. 15 Issue 12, p1761, 37p

The two-dimensional tricritical Ising model in restricted domains with free boundaries

Autor: Fröjdh, Per, Johannesson, Henrik

Publikováno v: In Nuclear Physics, Section B 1991 366(3):429-466