Quasi-1d quantum helimagnets: The fate of multipolar phases

Abstract

Coupled frustrated spin-1/2 chains in high magnetic fields described within the ferro- antiferromagnetic J1-J2 Heisenberg model are studied by the DMRG, the hard core boson, and the spin wave theory approaches. Multipolar phases related to magnon bound states are destroyed (supported) by weak antiferromagnetic (ferromagnetic) interchain couplings Jic. We show that quantum spin nematics might be found for LiVCuO4 whereas for Li(Na)Cu2O2 it is prevented by a sizeable antiferromagnetic Jic. Also for Li2ZrCuO4 with a small antiferromagnetic Jic expected triatic or quartic phases are unlikely, too. The saturation field is found to be strongly affected even by a relatively small Jic.

5 pages, 4 figures, as compared with the 1st version: new title, inclusion of 2D-phase diagrams, as well as addition of exact hard core boson results for nematics

References in corpus (6)

• Vector chiral and multipolar orders in the spin-1/2 frustrated ferromagnetic chain in magnetic field
• Emergent multipolar spin correlations in a fluctuating spiral - The frustrated ferromagnetic S=1/2 Heisenberg chain in a magnetic field
• Magnon pairing in quantum spin nematic
• Multi-magnon bound states in the frustrated ferromagnetic 1D chain
• Exact one- and two-particle excitation spectra of acute-angle helimagnets above their saturation magnetic field
• Saturation field of frustrated chain cuprates: broad regions of predominant interchain coupling

Cited by in corpus (5)

• Waves in the unseen : theory of spin excitations in a quantum spin nematic
• Complex field-induced states in Linarite PbCuSO${}_4$(OH)${}_2$ with a variety of high-order exotic SDW${}_p$ states
• Anisotropic Exchange in $\mathbf{LiC}{\mathbf{u}}_2{\mathbf{O}}_2$
• Self-organised magnon condensation in quasi-1D edge-shared cuprates without external fields
• Inter-chain Interactions, Multi-magnon condensation and Strain effect in chain compound NaVOPO${}_4$