Stripe Conductivity in La(1.775)Sr(0.225)NiO(4)
arXiv:cond-mat/9909270 · doi:10.1103/PhysRevLett.84.3919
Abstract
We report Raman light-scattering and optical conductivity measurements on a single crystal of La(1.775)Sr(0.225)NiO(4) which exhibits incommensurate charge-stripe order. The extra phonon peaks induced by stripe order can be understood in terms of the energies of phonons that occur at the charge-order wave vector, Q_c. A strong Fano antiresonance for a Ni-O bond-stretching mode provides clear evidence for finite dynamical conductivity within the charge stripes.
4 pages, 2-col style, including 5 eps figures; Fig.2 replaced with new Raman data plus some small changes to the text
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Cited by in corpus (14)
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- Freezing of a Stripe Liquid
- Mid-Infrared Conductivity from Mid-Gap States Associated with Charge Stripes
- Stripe Order and Magnetic Transitions in La(2-x)Sr(x)NiO(4)
- Spin reorientation transition in the incommensurate stripe-ordered phase of La3/2Sr1/2NiO4
- Magnetization of La(2-x)Sr(x)NiO(4+ delta) (0 < x < 0.5) and observation of novel memory effects
- Infrared Conductivity and Charge Ordering in NaCoO2
- Charge Condensation and Lattice Coupling Drives Stripe Formation in Nickelates
- Low energy, quasi-one-dimensional, spin dynamics in charge-ordered La(2-x)Sr(x)NiO(4)
- Inhomogeneous CuO_{6} Tilt Distribution and Charge/Spin Correlations in La_{2-x-y}Nd_{y}Sr_{x}CuO$_{4} around commensurate hole concentration
- Magnetic and Charge Correlations in La{2-x-y}Nd_ySr_xCuO_4: Raman Scattering Study
- Stability of charge-stripe ordered La2-xSrxNiO4+delta at one third doping