Spin-Gap States of a Periodic Mixed Spin Chain

Details Spin-Gap States of a Periodic Mixed Spin Chain Spin-Gap States of a Periodic Mixed Spin Chain

2000-03-16

arxiv.org/abs/cond-mat/0003274v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages (5 figures included) Submitted to Journal of Physics and Chemistry of Solids (Proceedings of CREST International Works

Scientific paper

10.1016/S0022-3697(00)00169-4

We examine a chain of periodic arrays of 4 quantum spins with magnitudes of 1/2, 1, 3/2 and 1. There are four kinds of nearest-neighbour exchange parameters among them. We choose two independent parameters for concreteness: one represents the ratio of typical exchange parameters, and the other represents a distortion. We determine the phase diagram of the ground state in the parameter space. The phase boundaries appear as gapless lines which separate gapful disordered phases. They are determined by the gapless equation which was previously derived by mapping a general periodic spin chain to the nonlinear $\sigma$ model.

Affiliated with

Also associated with

No associations

Rating

Spin-Gap States of a Periodic Mixed Spin Chain 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 Spin-Gap States of a Periodic Mixed Spin Chain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-Gap States of a Periodic Mixed Spin Chain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-551241