Resonant enhancement of charge density wave diffraction in the rare-earth tritellurides

@article{Lee2012ResonantEO,
  title={Resonant enhancement of charge density wave diffraction in the rare-earth tritellurides},
  author={W. S. Lee and A. P. Sorini and Ming Yi and Yi-de Chuang and Brian Moritz and W. L. Yang and Jiun Haw Chu and Hsueh-Hui Kuo and A. G. Cruz Gonzalez and Ian R. Fisher and Zahid Hussain and Thomas P. Devereaux and Z. X. Shen},
  journal={Physical Review B},
  year={2012},
  volume={85},
  pages={155142}
}
We performed resonant soft X-ray diffraction on known charge density wave (CDW) compounds, rare earth tri-tellurides. Near the M{sub 5} (3d - 4f) absorption edge of rare earth ions, an intense diffraction peak is detected at a wavevector identical to that of CDW state hosted on Te{sub 2} planes, indicating a CDW-induced modulation on the rare earth ions. Surprisingly, the temperature dependence of the diffraction peak intensity demonstrates an exponential increase at low temperatures, vastly… 

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References

SHOWING 1-10 OF 16 REFERENCES
Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half doping.
TLDR
A large spectral weight shift is observed between the magnetic and orbital resonant line shapes, which cannot be explained within the classic Goodenough picture of a charge-ordered ground state.
X-ray-scattering study of charge- and spin-density waves in chromium.
TLDR
An x-ray-scattering study of the incommensurate modulations in pure chromium finds that a single {ital Q} state exists in the near-surface region and the temperature dependence of the charge harmonics is found to obey mean-field scaling.
Calculations of magnetic x-ray dichroism in the 3d absorption spectra of rare-earth compounds.
TLDR
It is concluded that strong MXD effects can be expected for all rare-earth ions except those having a ground state with either J=0 or L=0, together with the temperature and field dependencies of the intensities of the spectral lines.
Effect of Chemical Pressure on the Charge Density Wave Transition in Rare-earth Tritellurides $R$Te$_3$
The charge density wave transition is investigated in the bilayer family of rare-earth tritelluride RTe{sub 3} compounds (R=Sm, Gd, Tb, Dy, Ho, Er, and Tm) via high-resolution x-ray diffraction and
Angle-resolved photoemission study of the evolution of band structure and charge density wave properties in RTe 3 ( R=Y , La, Ce, Sm, Gd, Tb, and Dy)
We present a detailed angle-resolved photoemission spectroscopy (ARPES) investigation of the RTe{sub 3} family, which sets this system as an ideal 'textbook' example for the formation of a nesting
Fermi Surface Evolution Across Multiple Charge Density Wave Transitions in ErTe3
Charge density wave systems have been studied formany decades [1]. CDWs and spin density waves, thespin analog, exist in all dimensions. However, enhancedelectron interactions in systems with reduced
Direct observation of orbital ordering in La0.5Sr1.5MnO4 using soft x-ray diffraction.
TLDR
Analysis of the low temperature phase of La0.5Sr1.5MnO4, a compound that displays charge and orbital ordering, reports the first direct resonant soft x-ray scattering observations of orbital ordering.
A Structural Probe of the Doped Holes in Cuprate Superconductors
TLDR
It is demonstrated that in anomalous x-ray scattering at the oxygen K edge of the cuprates, the contribution of carriers to the scattering amplitude is selectively magnified 82 times, permitting direct structural analysis of the superconducting ground state.
Strong magnetic dichroism predicted in the M4,5 x-ray absorption spectra of magnetic rare-earth materials.
TLDR
Polarized synchrotron radiation can be used to determine accurately the magnitude, the orientation, and the temperature and magnetic field dependence of the local rare-earth magnetic moment in a large variety of magnetically ordered materials and thin films.
Crystallization of charge holes in the spin ladder of Sr14Cu24O41
TLDR
The measurements support the picture that proximity to charge ordered states is a general property of superconductivity in copper oxides, and report the existence of a hole crystal in the doped spin ladder of Sr14Cu24O41 using a resonant X-ray scattering technique.
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