English

Unconventional state with two coexisting long-range orders for frustrated Heisenberg model at quantum phase transition

Strongly Correlated Electrons 2015-05-14 v1

Abstract

For the frustrated two-dimensional S=1/2S=1/2 antiferromagnetic Heisenberg model close to quantum phase transition we consider the singlet ground states retaining both translational and SU(2) symmetry. Besides usually discussed checkerboard, spin-liquid and stripe states an unconventional state with two coexisting long-range orders appears to be possible at sufficiently large damping of spin excitations. The problem is treated in the frames of self-consistent spherically symmetric approach.

Keywords

Cite

@article{arxiv.0912.4008,
  title  = {Unconventional state with two coexisting long-range orders for frustrated Heisenberg model at quantum phase transition},
  author = {A. V. Mikheyenkov and N. A. Kozlov and A. F. Barabanov},
  journal= {arXiv preprint arXiv:0912.4008},
  year   = {2015}
}

Comments

11 pages, 5 figures