Neutron scattering studies on stripe phases in non-cuprate materials

Abstract

Several non-cuprates layered transition-metal oxides exhibit clear evidence for stripe ordering of charges and magnetic moments. Therefore, stripe order should be considered as the typical consequence of doping a Mott insulator, but only in cuprates stripe order or fluctuating stripes coexist with metallic properties. A linear relationship between the charge concentration and the incommensurate structural and magnetic modulations can be considered as the finger print of stripe ordering with localized degrees of freedom. In nickelates and in cobaltates with K2NiF4 structure, doping suppresses the nearest-neighbor antiferromagnetism and induces stripe order. The higher amount of doping needed to induce stripe phases in these non-cuprates series can be attributed to reduced charge mobility. Also manganites exhibit clear evidence for stripe phases with further enhanced complexity, because orbital degrees of freedom are involved. Orbital ordering is the key element of stripe order in manganites since it is associated with the strongest structural distortion and with the perfectly fulfilled relation between doping and incommensurability. Magnetic excitations in insulating stripe phases exhibit strong similarity with those in the cuprates, but only for sufficiently short magnetic correlation lengths reflecting well-defined magnetic stripes that are only loosely coupled.

Submitted to special issue of Physica C, "Stripes and Electronic Liquid Crystals in Strongly Correlated Systems."

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Cited by in corpus (35)

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• Stacked Charge Stripes in Quasi-Two_Dimensional Trilayer Nickelate La4Ni3O8
• Cuprate superconductors as viewed through a striped lens
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• High oxygen pressure floating zone growth and crystal structure of the layered nickelates R${}_4$Ni${}_3$O${}_{10}$ (R=La, Pr)
• Superconductivity, Antiferromagnetism, and Neutron Scattering
• Spin stripe order in a square planar trilayer nickelate
• Direct evidence for charge stripes in a layered cobalt oxide
• Evidence for Fluctuating Charge Stripes far above the Charge-Ordering Transition in La${}_{1.67}$ Sr${}_{0.33}$ NiO${}_4$
• Review on quasi-2D square planar nickelates
• Incommensurate spin correlations in highly oxidized cobaltates La${}_{2-x}$Sr${}_x$CoO${}_4$
• Magnetic structure and magnon dispersion in LaSrFeO${}_4$
• Ubiquitous Charge Order Correlations in High-Temperature Superconducting Cuprates
• High Temperature Superconductivity in the Cuprates
• Evidence for a nematic phase in La${}_{1.75}$Sr${}_{0.25}$NiO${}_4$
• Emergence of Quasiparticles in a Doped Mott Insulator
• Superconductivity from charge order in cuprates
• Charge Condensation and Lattice Coupling Drives Stripe Formation in Nickelates
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• Nature and impact of stripe freezing in La${}_{1.67}$Sr${}_{0.33}$NiO${}_4$
• Direct Visualization of Spatial inhomogeneity of Spin Stripes Order in La1.72Sr0.28NiO4
• Spin and charge modulations of a half-filled extended Hubbard model
• Electronic character of charge order in square planar low valence nickelates
• Topological Doping and Superconductivity in Cuprates: An Experimental Perspective
• Nanoscale inhomogeneity of charge density waves dynamics in La${}_{2-x}$Sr${}_x$NiO${}_4$
• Energy-dependent crossover from anisotropic to isotropic magnetic dispersion in lightly-doped La1.96Sr0.04CuO4
• Interacting chains of orbital polarons in "Colossal" magnetoresistive La1-xSrxMnO3 revealed by spin and lattice dynamics
• Magnetic phase diagram of La${}_{2-x}$Sr${}_x$CoO${}_4$ revised using muon-spin relaxation
• Study of long-range orders of hard-core bosons coupled to cooperative normal modes in two-dimensional lattices
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