TY - JOUR
T1 - Polarized resonant inelastic X-ray scattering as an ultrafine probe of excited states of La2CuO4
AU - Shukla, Abhay
AU - Calandra, Matteo
AU - Taguchi, Munetaka
AU - Kotani, Akio
AU - Vankó, György
AU - Cheong, S. W.
PY - 2006
Y1 - 2006
N2 - X-ray absorption is the standard method to probe the unoccupied density of states at a given edge. Here we show that polarized resonant inelastic x-ray scattering in La2CuO4 at the Cu K edge is extremely sensitive to the environment of the Cu atom and the fine structure in the Cu 4p density of states. Combined ab initio and many-body cluster calculations, used for the first time in such a context, show remarkable agreement with experiment. In particular, we identify a nonlocal effect, namely, a transition to off-site Cu 3d states.
AB - X-ray absorption is the standard method to probe the unoccupied density of states at a given edge. Here we show that polarized resonant inelastic x-ray scattering in La2CuO4 at the Cu K edge is extremely sensitive to the environment of the Cu atom and the fine structure in the Cu 4p density of states. Combined ab initio and many-body cluster calculations, used for the first time in such a context, show remarkable agreement with experiment. In particular, we identify a nonlocal effect, namely, a transition to off-site Cu 3d states.
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U2 - 10.1103/PhysRevLett.96.077006
DO - 10.1103/PhysRevLett.96.077006
M3 - Article
AN - SCOPUS:33644512372
SN - 0031-9007
VL - 96
JO - Physical Review Letters
JF - Physical Review Letters
IS - 7
M1 - 077006
ER -