ESR of the quasi-two-dimensional antiferromagnet with a triangular lattice CuCrO2

Abstract

Using electron-spin-resonance (ESR) technique we investigate the magnetic structure of CuCrO2, quasi-two-dimensional antiferromagnet with weakly distorted triangular lattice. Resonance frequencies and the excitation conditions in CuCrO2 at low temperatures are well described in the frame of cycloidal spin structure, defined by two susceptibilities parallel and perpendicular to the spin plane and by a biaxial crystal-field anisotropy. In agreement with the calculations, the character of the eigenmodes changes drastically at the spin-flop transition. The splitting of the observed modes can be well attributed to the resonances from different domains. The domain structure in CuCrO2 can be controlled by annealing of the sample in magnetic field.

10 pages, 10 figures

References in corpus (3)

• Spin-driven ferroelectricity and possible antiferroelectricity in triangular lattice antiferromagnets ACrO2 (A = Cu, Ag, Li, or Na)
• Terahertz Conductivity at the Verwey Transition in Magnetite
• Magnetic structure of CuCrO2: a single crystal neutron diffraction study

Cited by in corpus (4)

• Magnetic phases of quasi-two-dimensional antiferromagnet on triangular lattice CuCrO${}_2$
• Magnetic field induced phases in anisotropic triangular antiferromagnets: application to $\mathrm{CuCr}{\mathrm{O}}_2$
• Magnetic structure and domain conversion of quasi-2D frustrated antiferromagnet CuCrO2 probed by NMR
• Search for a nematic phase in quasi-2D antiferromagnet CuCrO2 by NMR in electric field