Quantum spin chains with frustration due to Dzyaloshinskii-Moriya interactions

Abstract

The properties of two quantum spin chain materials, K${}_2$CuSO${}_4$Cl${}_2$ and K${}_2$CuSO${}_4$Br${}_2$, are studied by a variety of experimental techniques, including bulk measurements, neutron spectroscopy and ESR. The hierarchy of relevant terms in the magnetic Hamiltonian is established. It is shown that these two compounds feature substantial Dzyaloshinskii-Moriya (DM) interactions that are uniform within each chain, but antiparallel in adjacent chains. The result is a peculiar type of frustration of inter-chain interactions, which leads to an unusual field-temperature phase diagram.

References in corpus (5)

• The ALPS project release 1.3: open source software for strongly correlated systems
• Cupric chloride CuCl2 as an S=1/2 chain multiferroic
• Spin-orbital effects in magnetized quantum wires and spin chains
• Dynamic probes of quantum spin chains with the Dzyaloshinskii-Moriya interaction
• Spin dynamics in the low-dimensional magnet TiOCl

Cited by in corpus (8)

• Spinon magnetic resonance of quantum spin liquids
• Ising order in a magnetized Heisenberg chain subject to a uniform Dzyaloshinskii-Moriya interaction
• Finite-temperature correlations in a quantum spin chain near saturation
• Long-range spin chirality dimer order in the Heisenberg chain with modulated Dzyaloshinskii-Moriya interactions
• Magnetic phase diagram of a spin-1/2 XXZ chain with modulated Dzyaloshinskii-Moriya interaction
• Quantum critical dynamics and scaling in one-dimensional antiferromagnets
• Frustrated antiferromagnetic honeycomb-tunnel-like lattice CuRE2Ge2O8 (RE=Pr, Nd, Sm, and Eu)
• Spin Correlations in Quantum Wires