Exotic Ground State Phases of $S=1/2$ Heisenberg $Δ$-Chain with Ferromagnetic Main Chain

Details Exotic Ground State Phases of $S=1/2$ Heisenberg $Δ$-Chain with Ferromagnetic Main Chain Exotic Ground State Phases of $S=1/2$ Heisenberg $Δ$-Chain with Ferromagnetic Main Chain

2007-09-10

arxiv.org/abs/0709.1423v3

J. Phys. Soc. Jpn. 77, (2008) 044707

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 13 figures; Errata reported in J. Phys. Soc. Jpn. 79 (2010) 028001 (DOI: 10.1143/JPSJ.79.028001) corrected.

Scientific paper

10.1143/JPSJ.77.044707

The ground state phase diagram of the spin-1/2 Heisenberg frustrated $\Delta$-chain with a ferromagnetic main chain is investigated. In addition to the ferromagnetic phase, various nonmagnetic ground states are found. If the ferromagnetic coupling between apical spins and the main chain is strong, this model is approximated by a spin-1 bilinear-biquadratic chain and the spin quadrupolar phase with spin-2 gapless excitation is realized in addition to the Haldane and ferromagnetic phases. In the regime where the coupling between the apical spins and the main chain is weak, the numerical results which suggest the possibility of a series of phase transitions among different nonmagnetic phases are obtained. Physical pictures of these phases are discussed based on the numerical results.

Affiliated with

Also associated with

No associations

Rating

Exotic Ground State Phases of $S=1/2$ Heisenberg $Δ$-Chain with Ferromagnetic Main 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 Exotic Ground State Phases of $S=1/2$ Heisenberg $Δ$-Chain with Ferromagnetic Main Chain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exotic Ground State Phases of $S=1/2$ Heisenberg $Δ$-Chain with Ferromagnetic Main Chain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-656416