Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet

Details Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet

1997-12-23

arxiv.org/abs/cond-mat/9712281v1

Phys. Rev. B 58, 8500 (1998).

Physics

Condensed Matter

Strongly Correlated Electrons

17 pages, REVTex, 5 Postscript figures

Scientific paper

10.1103/PhysRevB.58.8500

We consider the two-dimensional (2D) quantum Heisenberg antiferromagnet at zero temperature with two types of locally frustrating perturbations - an isolated ferromagnetic bond (FMB) and a quantum impurity spin, coupled symmetrically to the two sublattices. An analytic technique is developed to study strong defect-environment interaction. In the case of a FMB we find that, contrary to the previous linear spin-wave result, the local magnetization stays finite even for strong frustration. For an antiferromagnetic coupling of a quantum impurity spin with its environment, we find a local ground state transition. All our calculations are compared with numerical results from exact diagonalization on small clusters.

Affiliated with

Also associated with

No associations

Rating

Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet 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 Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-541361