Multipolar phase in frustrated spin-1/2 and 1 chains
Abstract
The spin chain model with nearest neighbor and next nearest neighbor anti-ferromagnetic interaction is one of the most popular frustrated magnetic models. This model system has been extensively studied theoretically and applied to explain the magnetic properties of the real low-dimensional materials. However, existence of different phases for the model in an axial magnetic field is either not understood or has been controversial. In this paper we show the existence of higher order multipolar phase near the critical point . The criterion to detect the quadrupolar or spin nematic (SN)/spin density wave of type two (SDW) phase using the inelastic neutron scattering (INS) experiment data is also discussed, and INS data of LiCuVO compound is modelled. We discuss the dimerized and degenerate ground state in the quadrupolar phase. The major contribution of binding energy in the spin-1/2 system comes from the longitudinal component of the nearest neighbor bonds. We also study spin nematic/SDW phase in spin-1 system in large limit.
Cite
@article{arxiv.1705.07292,
title = {Multipolar phase in frustrated spin-1/2 and 1 chains},
author = {Aslam Parvej and Manoranjan Kumar},
journal= {arXiv preprint arXiv:1705.07292},
year = {2017}
}
Comments
11 pages, 10 figures