Ferromagnets and antiferromagnets in the effective Lagrangian perspective

Details Ferromagnets and antiferromagnets in the effective Lagrangian perspective Ferromagnets and antiferromagnets in the effective Lagrangian perspective

2002-02-09

arxiv.org/abs/cond-mat/0202153v1

Physics

Condensed Matter

Contributed Talk at 8th Mexican Workshop on Particles and Fields, Zacatecas, Mexico, 14-20 Nov 2001

Scientific paper

10.1063/1.1489767

Nonrelativistic systems exhibiting collective magnetic behavior are analyzed within the framework of effective Lagrangians. The method, which formulates the dynamics of the system in terms of Goldstone bosons, allows to investigate the consequences of spontaneous symmetry breaking from a unified point of view. Analogies and differences with respect to the Lorentz-invariant situation (chiral perturbation theory) are pointed out. We then consider the low-temperature expansion of the partition function both for ferro- and antiferromagnets, where the spin waves or magnons represent the Goldstone bosons of the spontaneously broken symmetry $O(3) \to O(2)$. In particular, the low-temperature series of the staggered magnetization for antiferromagnets and the spontaneous magnetization for ferromagnets are compared with the condensed matter literature.

Affiliated with

Also associated with

No associations

Rating

Ferromagnets and antiferromagnets in the effective Lagrangian perspective does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ferromagnets and antiferromagnets in the effective Lagrangian perspective, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ferromagnets and antiferromagnets in the effective Lagrangian perspective will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-675390