Direct Observation of Charge Order in an EpitaxialFilm
- 8 March 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 88 (12), 126402
- https://doi.org/10.1103/physrevlett.88.126402
Abstract
The first direct observation of charge order of and by resonant x-ray scattering experiments in an epitaxial film of is reported. A quantitative value of was obtained. The temperature dependence of the charge order deviates significantly from those of the magnetic moment and crystallographic structure. This might be an indication of a difference in their fluctuation time scales. These observations are discussed in terms of the temperature-driven metal-insulator transition in the family.
Keywords
This publication has 21 references indexed in Scilit:
- Spin and charge ordering in self-doped Mott insulatorsPhysical Review B, 2000
- Charge Disproportionation inPerovskites: Simultaneous Metal-Insulator and Structural Transition inPhysical Review Letters, 1999
- Metal-insulator transitionsReviews of Modern Physics, 1998
- GiantIsotope Effect on the Metal-Insulator Transition ofPerovskites (Rare Earth)Physical Review Letters, 1998
- Neutron-diffraction study of the magnetic and orbital ordering inandPhysical Review B, 1998
- Structural, magnetic and electronic properties of perovskites (R = rare earth)Journal of Physics: Condensed Matter, 1997
- Electronic structure and orbital ordering in perovskite-type 3dtransition-metal oxides studied by Hartree-Fock band-structure calculationsPhysical Review B, 1996
- Giant oxygen isotope shift in the magnetoresistive perovskite La1–xCaxMnO3+yNature, 1996
- Neutron-diffraction study ofR(R=La,Pr,Nd,Sm): Electronically induced structural changes across the metal-insulator transitionPhysical Review B, 1992
- Systematic study of insulator-metal transitions in perovskites RNiO3 (R=Pr,Nd,Sm,Eu) due to closing of charge-transfer gapPhysical Review B, 1992