[seminar] Seminar @ Institute of Physics, Tuesday 22nd Mar 2022 at 11:00, lecture room 1st wing, and Zoom

[Damir Dominko]

My apologies, the location changed. Due to unfinished renovation 
business in the lecture room the seminar will be held at IF on the 2nd 
floor in the meeting room. Please keep in mind the space limits there 
before deciding on online/live mode of participation.

Best regards,

Damir

On 3/17/2022 13:15, Damir Dominko wrote:
>
> Seminar @ Institute of Physics, Tuesday 22nd Mar 2022 at 11:00, 
> lecture room 1st wing, and Zoom
>
> *Resonant Inelastic X-ray Scattering Experiments at the SEXTANTS 
> Beamline and Perspectives for RIXS Under Electric and Magnetic Fields**
> *
> *Dr. Alessandro Nicolaou
> *
> *Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 
> Gif-sur-Yvette,France*
>
> Resonant inelastic X-ray scattering (RIXS) is a photon-in photon-out 
> technique in which the system is resonantly excited at an absorption 
> edge and the scattered photons are measured in order to probe the 
> energy and momentum transfer of the intrinsic excitations, such as 
> electronic, magnetic or of the lattice. This spectroscopy has been 
> subject of a remarkable progress in the last decades for its 
> capability of gaining information of fundamental interest for 
> correlated systems.
> At the SEXTANTS beamline of the synchrotron SOLEIL, we perform RIXS 
> experiments in the soft X-ray regime. After a short presentation of 
> the technique, I will highlight some of the main experimental results 
> we recently obtained. One example is represented by the work on 
> La1-xSrxVO3, a canonical example of correlated system exhibiting a 
> filling control metal-insulator transition, as well as orbital and 
> antiferromagnetic orderings at low temperature. I will show how 
> low-doping (x=0.1) affects the electronic structure primarily on the O 
> sites, at odds with a simple Mott-Hubbard picture, and how RIXS can 
> measure orbital excitations and their behavior with temperature. I 
> will discuss how these results can be only partially understood by a 
> local model based on crystal field theory calculations.
> Finally, I will describe the capabilities of the novel MAGELEC sample 
> environment, which was conceived for performing RIXS experiments under 
> electric and magnetic fields in a temperature range from 400 K down to 
> 18 K. MAGELEC consists of sample holder equipped with 12 electrical 
> contacts, which is combined with a compact quadrupolar magnet 
> delivering a rotatable magnetic field up to 0.45 T. Thanks to the 
> particular design of the electromagnet, the whole scattering plane is 
> available for magnetic circular and linear dichroism RIXS experiments. 
> I will show how this unique sample environment, accessible for 
> external users since February 2020, opens new perspectives at the 
> SEXTANTS beamline thanks to the possibility to tackle several kinds of 
> open questions in the field of transition metal compounds beyond the 
> accuracy obtained by the widely used X-ray magnetic circular dichroism 
> and in operando conditions.
>
> Join Zoom Meeting
> https://zoom.us/j/92983064161?pwd=blhQRVkwN3krYlh0bEJKQU1MZjJjZz09
> <https://zoom.us/j/92983064161?pwd=blhQRVkwN3krYlh0bEJKQU1MZjJjZz09>
> Meeting ID: 929 8306 4161
> Passcode: 881514
>
> *Seminar hosts: <mailto:nsantic at ifs.hr>Neven Šantić i Damir Dominko 
> <mailto:ddominko at ifs.hr>*
> ________________________________________________________________________________
>
> -- 
> Damir Dominko
> Research associate
> Institute of Physics Zagreb
> Bijenicka cesta 46, 02-226
> 10000 Zagreb, Croatia
> office: +385 1 469 8821
> cell: +385958172990
> e-mail:ddominko at ifs.hr

-- 
Damir Dominko
Research associate
Institute of Physics Zagreb
Bijenicka cesta 46, 02-226
10000 Zagreb, Croatia
office: +385 1 469 8821
cell: +385958172990
e-mail:ddominko at ifs.hr
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