Development of spin correlations in the geometrically frustrated triangular-lattice Heisenberg antiferromagnet CuCrO2
arXiv:1407.5190 · doi:10.7566/JPSJ.84.074708
Abstract
Magnetic excitations in the triangular-lattice Heisenberg antiferromagnet (TLHA) CuCrO2 were studied using single-crystal inelastic neutron scattering. A diffusive quasielastic component that persisted without developing a correlation length over a wide temperature range both below and above the ordering temperature was observed. Furthermore, characteristic momentum dependence was observed that was reproduced using minimum spin clusters. The robust spin clusters contrast with conventional magnetic ordering and may be universal in TLHAs.
5 pages, 3 figures
References in corpus (6)
- Spin-driven ferroelectricity and possible antiferroelectricity in triangular lattice antiferromagnets ACrO2 (A = Cu, Ag, Li, or Na)
- Unconventional Dynamics in Triangular Heisenberg Antiferromagnet NaCrO2
- Critical behavior of the metallic triangular-lattice Heisenberg antiferromagnet PdCrO2
- Molecular spin resonance in the geometrically frustrated MgCr2O4 magnet by inelastic neutron scattering
- Signature of a Z_2 vortex in the dynamical correlations of the triangular-lattice Heisenberg antiferromagnet
- Influence of Mg, Ag and Al substitutions on the magnetic excitations in the triangular-lattice antiferromagnet CuCrO2