Unidirectional Diagonal Order and 3D Stacking of Charge Stripes in Orthorhombic Pr1.67Sr0.33NiO4 and Nd1.67Sr0.33NiO4

Abstract

The interplay between crystal symmetry and charge stripe order in Pr1.67Sr0.33NiO4 and Nd1.67Sr0.33NiO4 has been studied by means of single crystal x-ray diffraction. In contrast to tetragonal La1.67Sr0.33NiO4, these crystals are orthorhombic. The corresponding distortion of the NiO2 planes is found to dictate the direction of the charge stripes, similar to the case of diagonal spin stripes in the insulating phase of La2-xSrxCuO4. In particular, diagonal stripes seem to always run along the short a-axis, which is the direction of the octahedral tilt axis. In contrast, no influence of the crystal symmetry on the charge stripe ordering temperature itself was observed, with T_CO 240K for La, Pr, and Nd. The coupling between lattice and stripe degrees of freedom allows one to produce macroscopic samples with unidirectional stripe order. In samples with stoichiometric oxygen content and a hole concentration of exactly 1/3, charge stripes exhibit a staggered stacking order with a period of three NiO2 layers, previously only observed with electron microscopy in domains of mesoscopic dimensions. Remarkably, this stacking order starts to melt about 40K below T_CO. The melting process can be described by mixing the ground state, which has a 3-layer stacking period, with an increasing volume fraction with a 2-layer stacking period.

13 pages, 13 figures

References in corpus (29)

• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• Coexistence of, and Competition between, Superconductivity and Charge-Stripe Order in La(1.6-x)Nd(0.4)Sr(x)CuO(4)
• Spatially modulated "Mottness" in La2-xBaxCuO4
• Stripe order, depinning, and fluctuations in La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$ and La${}_{1.875}$Ba${}_{0.075}$Sr${}_{0.050}$CuO${}_4$
• Neutron Scattering Study of Spin Density Wave Order in the Superconducting State of Excess-Oxygen-Doped La2CuO4+y
• Static magnetic correlations near the insulating-superconducting phase boundary in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Observation of New Incommensurate Magnetic Correlations at the Lower Critical Concentration for Superconductivity (x=0.05) in La(2-x)Sr(x)CuO4
• Direct Observation of a One Dimensional Static Spin Modulation in Insulating La1.95Sr0.05CuO4
• Stripe order at low temperatures in La{2-x}Sr{x}NiO4 for 1/3 < x < 1/2
• Melting of Quasi-Two-Dimensional Charge Stripes in La5/3Sr1/3NiO4
• Spontaneous rearrangement of the checkerboard charge order to stripe order in La1.5Sr0.5NiO4
• Neutron diffraction study of stripe order in La(2)NiO(4+d) with d=2/15
• Charge and Spin Dynamics of an Ordered Stripe Phase in La_(1 2/3)Sr_(1/3)NiO_4 by Raman Spectroscopy
• Sr impurity effects on the magnetic correlations of LaSrCuO
• Spectroscopy of stripe order in La1.8Sr0.2NiO4 using resonant soft x-ray diffraction
• Incommensurate Geometry of the Elastic Magnetic Peaks in Superconducting La1.88Sr0.12CuO4
• Oxygen and Strontium Codoping of La2NiO4: Room Temperature Phase Diagrams
• Superconducting Spiral Phase in the two-dimensional t-J model
• Freezing of a Stripe Liquid
• Charge stripes seen with x-rays in La_(1.45)Nd_(0.4)Sr_(0.15)CuO_(4)
• Mid-Infrared Conductivity from Mid-Gap States Associated with Charge Stripes
• Weak ferromagnetic spin and charge stripe order in La[sub 5/3]Sr[sub 1/3]NiO[sub 4]
• Structural effect on the static spin and charge correlations in La${}_{1.875}$Ba${}_{0.125-x}$Sr${}_x$CuO${}_4$
• Spin correlations among the charge carriers in an ordered stripe phase
• Ordering Process and Its Hole Concentration Dependence of the Stripe Order in La{2-x}Sr{x}NiO{4}
• Transmission-electron-microscopy study of charge-stripe order in La(1.725)Sr(0.275)NiO(4)
• Relationship between charge stripe order and structural phase transitions in La${}_{1.875}$Ba${}_{0.125-x}$Sr${}_x$CuO${}_4$
• Magnetism of Stripe-Ordered La_(5/3)Sr_(1/3)NiO_4
• Local spin spirals in the Neel phase of La_{2-x}Sr_xCuO_4

Cited by in corpus (15)

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• Stacked Charge Stripes in Quasi-Two_Dimensional Trilayer Nickelate La4Ni3O8
• Pseudogap of metallic layered nickelate R2-xSrxNiO4 (R=Nd, Eu) crystals measured using angle-resolved photoemission spectroscopy
• Spin stripe order in a square planar trilayer nickelate
• Direct observation of dynamic charge stripes in La2-xSrxNiO4
• Neutron scattering studies on stripe phases in non-cuprate materials
• Stabilization of three-dimensional charge order in YBa${}_2$Cu${}_3$O${}_{6+x}$ via epitaxial growth
• Magnetic ordering in the striped nickelate La5/3Sr1/3NiO4: A band structure point of view
• Pseudogap-related charge dynamics in layered-nickelate R2-xSrxNiO4 (x sim 1)
• Robust charge stripe order under high electric fields in Nd1.67Sr0.33NiO4
• Evidence for a nematic phase in La${}_{1.75}$Sr${}_{0.25}$NiO${}_4$
• Stripe segregation and magnetic coupling in the nickelate La_5/3 Sr_1/3 NiO_4
• Nature and impact of stripe freezing in La${}_{1.67}$Sr${}_{0.33}$NiO${}_4$
• Tilted stripes origin in ${\mathrm{La}}_{1.88}{\mathrm{Sr}}_{0.12}{\mathrm{CuO}}_4$ revealed by anisotropic next-nearest neighbor hopping
• Electronic interlayer coupling in the LTT phase of La1.79Eu0.2Sr0.01CuO4