The equipment from Spain makes it way to the lab in Aarhus. Due to the size of our tables, we have to enter the building via the window.
12/2020
Simon has been awarded a Young Researcher Fellowship of Kr. 4,996,778 by the Carlsberg Foundation for studying "Coherence and Disorder in Light-Driven Phase Transitions"
12/2020
The transfer of the lab equipment from Spain to Denmark gets underway! After a few delays the moving company has collected our ERC funded lab and it is on its way!
11/2020
ICFO PhD student Emmanuel Amuah joins us in Aarhus to finish his PhD after recently passing the defense of his thesis proposal. Congratulations and welcome to the group!
11/2020
What Simon present some of the groups research at the "Ultrafast Dynamics and Transient States in Matter" session at the virtual CMD2020GEFES conference. The talk starts at approx. 1h20.
10/2020
Our latest work entitled "Does VO2 host a transient monoclinic metallic phase?" is published in Physical Review X.
This work is an experimental tour-de-force, led by former ICFOian PhD student Luciana Vidas, covers dynamics of the light-induced insulator-metal phase transition in VO2. Measurements captured the dynamics of the phase transition from femto- to mili-seconds and spectroscopy of the transient state was performed from the mid-IR to the soft X-ray region.
Our work showed that, contrary to previous claims, the structural and electronic aspects of the phase transition remain "locked" together and it is not possible to generate a metallic monoclinic phase. We also show that the thermal energy in the lattice is key for understanding the ultrafast phase transition in VO2.
(08/2020)
Our latest work on soft X-ray imaging and nanoscale spectroscopy of the insulator-metal phase transition in VO2 is now available on the arXiv. One of the few good things about the COVID crisis, Allan went through our old holography data and was able to implement a partial coherence algorithm to provide access to the complex refractive index, enabling us to obtain the exact spectra of our sample.
(08/2020)
Maurizio Monti becomes the first member of the Aarhus team after completing his PhD at the University of Warwick. Welcome Maurizio
(08/2020)
Watch Allan Johnson's talk on hyper-spectral coherent diffractive imaging of the phase transition in VO2 for the CMD2020 virtual conference online now!
(08/2020)
For a summary our latest work on the ultrafast dynamics of orbital order in the manganites, take a look at the poster prepared by Daniel Perez. Dani has been developing an innovative method to obtain the dynamics of the optical anisotropy in response to photoexcitation, which he has used to directly probe the ultrafast melting of orbital order. The poster will be presented at the biennial meeting of the Condensed Matter Divisions of the European and Spanish physics societies (CMD2020GEFES)
(08/2020)
Despite the corona virus, we are moving from Barcelona to Aarhus university! Simon is already full time at Aarhus, and the first lab should arrive in the beginning of October. Stay tuned for more information!
(07/2020)
