Lecture Jeroen van den Brink
|29 april 2010||FWN-Building 5113.0202, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Prof. Dr. Jeroen van den Brink|
|Affiliation:||Institute for Theoretical Solid State Physics, IFW Dresden, Germany|
|Title:||Elementary excitations probed by resonant inelastic X-ray scattering|
|Date:||Thu Apr 29, 2010|
|Host:||Paul van Loosdrecht|
|Telephone:||+31 50 363 8149|
Resonant Inelastic X-ray Scattering (RIXS) provides direct access to elementary charge, spin and orbital excitations in complex oxides. As a technique it has made tremendous progress with the advent high-brilliance synchrotron x-ray sources. The fundamental question that arises is to precisely which low-energy correlation functions RIXS is sensitive. I will show that depending on the experimental RIXS set up, the measured charge dynamics can include charge-transfer, d-d and orbital excitations [1,2]. RIXS also allows probing spin dynamics, in particular magnons and bi-magnons dispersions [3,4]. Based on these observations, I will discuss the novelties that RIXS reveals on the spin dynamics of High Tc cuprates .
 Van den Brink and Van Veenendaal, EPL 73, 121 (2006).
 Forte et al., PRL 101, 106406 (2008).
 Braicovich et al., PRL 102, 167401 (2009).
 Ament et al., PRL 103, 117003 (2009).
 Braicovich et al., PRL 104, 077002 (2010).
|Laatst gewijzigd:||22 oktober 2012 14:30|