RIXS with x-ray standing wave

3 March 2016

Resonant inelastic x-ray scattering (RIXS) technique has been succesfully done with an x-ray standing wave (XSW) excitation. In a recent article by Kari Ruotsalainen et al., (Scientific Reports 6, 22648 (2016) RIXS at the Gd L3 edge was found to enhance quadrupolar excitations significantly.

Simo Huotari nominated as the first Finnish member to the DESY Photon Science Committee

15 September 2015

The DESY Photon Science Committee (PSC) has been established in 2004 to give advice in strategic issues for all DESY (Deutsches Elektronen-Synchrotron) developments and activities in the field of photon science. It consists of 14 - 16 members, all of them international experts in the field of synchrotron radiation and free electron lasers. Academy Research Fellow Simo Huotari from HELIXS group was nominated in 2015 as the first-ever Finnish member of the PSC. The Finnish News Agency published a press release (in Finnish).

CSC Grand Challenge project to HELIXS

17 April 2015

The researchers of HELIXS obtained the CSC's Grand Challenge project "Electronic and optical properties of perovskite-based photovoltaic materials", which allows massive calculations on a new photovoltaic material. Perovskite-based materials have turned out to be one of the most promising candidate for low-cost high-efficiency solar cells. The challenge is to comprehensively understand and predict the underlying physics behind the electronic and optical properties of these rather complex crystalline materials, in order to realistically engineer and optimize the solar cell device. Accurate electronic structures calculations are the only way to reach this target. The project contains both structural and spectroscopic investigations with state-of-the-art computational tools.

Maailman nopein vedenkeitin ei mahdu keittiöösi

18 December 2013

(In Finnish)
Artikkeli vesitutkimuksesta vapaaelektronilaserilla Tekniikka & Talous -lehdessä

New details of atomic structure of water under extreme conditions found

14 February 2013

Scientist from Dortmund, Helsinki, Potsdam, and the ESRF have revealed details of the microscopic atomic structure of water under extreme conditions. Their results show that microscopic structure of water remains homogeneous throughout the range of examined rough temperatures and pressures. These findings implicate ways of studying unknown disordered structures and samples under extreme conditions on an atomic scale in depth even when other structural probing techniques fail. The results have now been published in the Proceedings of the National Academy of Sciences of the USA. Here is a link to the full press release. You can also read more from here.


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