Charge ordering in La1.8-x Eu0.2 Srx CuO4 studied by resonant soft x-ray diffraction
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Contributors
Abstract
Resonant soft x-ray scattering with photon energies near the OK and the Cu L3 edges was used to study the charge ordering in the system La 1.8-x Eu0.2 Srx CuO4 as a function of temperature for x=0.125 and 0.15. From the superstructure diffraction intensities, a charge ordering with a doping-dependent wave vector is derived which is in this system well below the transition temperature of the low-temperature tetragonal phase but well above the onset of spin ordering. This indicates that structural changes and magnetic interactions are not in general the driving force for the formation of stripelike phases in two-dimensional- doped cuprates. Analysis of the lineshape of the scattered intensity as a function of photon energy yields evidence for a high hole concentration in the stripes.
Details
Original language | English |
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Article number | 100502 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 79 |
Issue number | 10 |
Publication status | Published - 3 Mar 2009 |
Peer-reviewed | Yes |
External IDs
ORCID | /0000-0002-2438-0672/work/158767807 |
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