Resonant X-rays at the Cu L-edge as a momentum dependent probe of the magnetic excitation spectrum in cuprates

2009/03/17 by L. J. P. Ament, G. Ghiringhelli, M. Moretti Sala +2 · 1 citation
Physics and Astronomy · #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.103.117003

published as Phys. Rev. Lett. 103, 117003 (2009) · 4 pages, 3 figures

arxiv created 2009/03/17 · arxiv updated 2015/05/13

Abstract

We show that, contrary to common lore, in resonant inelastic x-ray scattering (RIXS) at the copper L- and M-edge direct spin-flip scattering is in principle allowed. We demonstrate how this possibility can be exploited to probe the momentum dependent magnetic properties of cuprates such as the high Tc superconductors and compute in detail the relevant local and momentum dependent magnetic scattering amplitudes, which we compare to the elastic and dd-excitation scattering intensities. For cuprates these results put RIXS as a technique on the same footing as neutron scattering.

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