Exact degenerate ground states for the F-AF spin chain with bond alternation

Details Exact degenerate ground states for the F-AF spin chain with bond alternation Exact degenerate ground states for the F-AF spin chain with bond alternation

2008-06-10

arxiv.org/abs/0806.1604v2

J. Phys. Soc. Jpn. 77 (2008) 113701

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures

Scientific paper

10.1143/JPSJ.77.113701

We investigate the $J_1$-$J_2$ spin chain consisting of spins with magnitude $\frac12$. The nearest-neighbor and the next-nearest-neighbor exchange interactions are ferromagnetic and antiferromagnetic, respectively, and induce strong frustration. Both these interactions involve the bond alternation. We find exact solutions for all the degenerate ground states on the phase boundary of the ferromagnetic phase. The degeneracy remains irrespective of two parameters representing the bond alternation. The exact solutions are of closed forms for no bond alternation and of recursion formulae in general. The exact solutions are applicable to the $\Delta$ chain as a special case.

Affiliated with

Also associated with

No associations

Rating

Exact degenerate ground states for the F-AF spin chain with bond alternation 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 Exact degenerate ground states for the F-AF spin chain with bond alternation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exact degenerate ground states for the F-AF spin chain with bond alternation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-174707