Lightly doped La(2-x)Sr(x)CuO(4) as a Lifshitz helimagnet

Abstract

We study the static magnetic correlations in lightly doped La(2-x)Sr(x)CuO(4) within the framework of a dipolar frustration model for a canted antiferromagnet. We show that the stability of the canted Neel state for x<2% is due to the Dzyaloshinskii-Moriya and XY anisotropies. For higher doping the ground state is unstable towards a helicoidal magnetic phase where the transverse components of the staggered magnetization rotate in a plane perpendicular to the orthorhombic b-axis. Our theory reconciles, for the first time, the incommensurate peaks observed in elastic neutron scattering with Raman and magnetic susceptibility experiments in La(2-x)Sr(x)CuO(4).

arXiv comment4 pages, 2 figures, published in Phys. Rev. Lett

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Cited by in corpus (18)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Magnetic Excitations of the Diagonal Incommensurate Phase in Lightly-Doped La2-xSrxCuO4
• Interplay between incommensurate phases in the cuprates
• Destruction of Neel order and local spin spirals in insulating La_{2-x}Sr_xCuO_4
• Effective action, magnetic excitations and quantum fluctuations in lightly doped single layer cuprates
• Competing impurities and reentrant magnetism in La(2-x)Sr(x)Cu(1-z)Zn(z)O(4) revisited. The role of the Dzyaloshinskii-Moriya and XY anisotropies
• Competition and coexistence of antiferromagnetism and superconductivity in RBa_2Cu_3O_{6+x} (R = Lu, Y) single crystals
• Effects of Superconductivity and Charge Order on the sub-Terahertz reflectivity of La${}_{1.875}$Ba${}_{0.125-y}$Sr${}_y$CuO${}_4$
• Negative Hopping Magnetoresistance and Dimensional Crossover in Lightly Doped Cuprate Superconductors
• Effective action of the weakly doped t-J model and spin-wave excitations in the spin-glass phase of La_{2-x}Sr_xCuO_4
• Energy-dependent crossover from anisotropic to isotropic magnetic dispersion in lightly-doped La1.96Sr0.04CuO4
• Magneto-elastic coupling between copper spin configurations and oxygen octahedra in La(2-x)Sr(x)CuO(4). Untwinning, Raman (phonon) spectrum, and neutron response
• Impact of the Dzyaloshinskii-Moriya interaction in strongly correlated itinerant systems
• Massive CP${}^1$ theory from a microscopic model for doped antiferromagnets
• Charge stripe order from antiphase spin spirals in the spin-Fermion model
• Impurity susceptibility and the fate of spin-flop transitions in lightly-doped La(2)CuO(4)
• Quantum criticality in photorefractive optics: vortices in laser beams and antiferromagnets
• AC Hopping Magnetotransport Across the Spin Flop Transition in Lightly Doped La_2CuO_4