Back to Search
Start Over
Magnetic excitation spectrum of Na2IrO3 probed with resonant inelastic x-ray scattering.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Jun2013, Vol. 87 Issue 22, p220407-1-220407-5. 5p. - Publication Year :
- 2013
-
Abstract
- The low energy excitations in Na2IrO3 have been investigated using resonant inelastic x-ray scattering (RIXS). A magnetic excitation branch can be resolved, whose dispersion reaches a maximum energy of about 35 meV at the r point. The momentum dependence of the excitation energy is much larger along the T-X direction compared to that along the Г-X direction. The observed dispersion relation is consistent with a recent theoretical prediction based on the Heisenberg-Kitaev model. At high temperatures, we find large contributions from lattice vibrational modes to our RIXS-spectra, suggesting that a strong electron-lattice coupling is present in Na2IrO3. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 87
- Issue :
- 22
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 89668919
- Full Text :
- https://doi.org/10.1103/PhysRevB.87.220407