Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions

Details Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions

2007-05-17

arxiv.org/abs/0705.2591v2

Phys. Rev. B 76, 184403 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages, 15 figures. Content, references, and comments on recent experiments have been added. Published version

Scientific paper

10.1103/PhysRevB.76.184403

We study the consequences of in-plane (D_p) and out-of-plane (D_z) Dzyaloshinsky-Moriya (DM) interactions on the thermodynamic properties of spin-1/2} Heisenberg model on the kagome lattice using numerical linked cluster expansions and exact diagonalization, and contrast them with those of other perturbations such as exchange anisotropy and dilution. We find that different combinations of the DM anisotropies lead to a wide variety of thermodynamic behavior, which are quite distinct from those of most other perturbations. We argue that the sudden upturn seen experimentally in the susceptibility of the material ZnCu3(OH)6Cl2 can be understood in terms of Dzyaloshinsky-Moriya anisotropies with D_p>|D_z|. We also show that the measured specific heat of the material puts further constraints on the allowed DM parameters.

Affiliated with

Also associated with

No associations

Rating

Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions 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 Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-438328