Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2011-11-22
Physical Review B 85 (2012) 064422
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
We study the magnetic excitation spectra of L-edge resonant inelastic x-ray scattering (RIXS) from the spin singlet ground state in one-dimensional undoped cuprates. Analyzing the transition amplitudes of the magnetic excitations in the second-order dipole allowed process, we find that the magnetic excitations are brought about not only on the core-hole site but also on the neighboring sites. The RIXS spectra are expressed by the one-spin correlation function in the scattering channel with changing polarization, and the two-spin correlation function in the scattering channel without changing polarization. The latter could not be brought about within the so-called UCL approximation. We calculate these correlation functions on a finite-size ring. An application to the possible RIXS spectra in Sr_2CuO_3 demonstrates that the contribution of the two-spin correlation function could be larger than that of the one-spin correlation function in the \sigma polarization for the momentum transfer around the zone center.
Igarashi Jun-ichi
Nagao Tatsuya
No associations
LandOfFree
Magnetic excitations in L-edge resonant inelastic x-ray scattering from one-dimensional cuprates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetic excitations in L-edge resonant inelastic x-ray scattering from one-dimensional cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic excitations in L-edge resonant inelastic x-ray scattering from one-dimensional cuprates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-552246