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TT: Fachverband Tiefe Temperaturen

TT 7: Focused Session: Resonant Inelastic X-ray Scattering on Magnetic Excitations

TT 7.1: Invited Talk

Monday, March 26, 2012, 15:00–15:40, H 0104

RIXS Studies of Strongly Correlated Electron Systems — •John Hill — Dept. of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, USA

Resonant Inelastic X-ray Scattering (RIXS) has undergone enormous theoretical and experimental development in recent years - to the point where the technique is now able to observe all the relevant low energy excitations, including phonons, magnons, orbital excitations, charge transfer excitations, etc. As a result it is now able to make significant contributions to many of the current hardest problems in condensed matter physics. Here I provide an overview of the technique, and its development, focusing on the hard x-ray regime. In particular, I review work on the cuprates, the observation of two-magnon scattering and the very recent work on the low energy excitations of the iridates including the observation of mixed spin and orbital excitations. Finally I conclude with a brief discussion of the exciting prospects for the future of this technique.