Parity law of the singlet-triplet gap in graphitic ribbons

Details Parity law of the singlet-triplet gap in graphitic ribbons Parity law of the singlet-triplet gap in graphitic ribbons

2006-01-13

arxiv.org/abs/cond-mat/0601293v3

European Physical Journal B 51 (2006) 517

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 7 figures, published version

Scientific paper

10.1140/epjb/e2006-00259-9

This work explores the possibility to transfer the parity law of the singlet-triplet gap established for square ladders (gapped for even number of legs, gapless for odd number of legs) to fused polyacenic 1-D systems, i.e., graphite ribbons. Qualitative arguments are presented in favor of a gapped character when the number $n\_{\omega}$ of benzene rings along the ribbon width is odd. A series of numerical calculations (quantitative mapping on spin 1/2 chains, renormalized excitonic treatments and Quantum Monte Carlo) confirm the parity law and the gapless character of the ribbon for even $n\_{\omega}$.

Affiliated with

Also associated with

No associations

Rating

Parity law of the singlet-triplet gap in graphitic ribbons 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 Parity law of the singlet-triplet gap in graphitic ribbons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parity law of the singlet-triplet gap in graphitic ribbons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-452821