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SUMMARY:Ultrafast study of out-of-equilibrium quantum materials - LACUS Se
 minar
DTSTART:20180220T110000
DTEND:20180220T120000
DTSTAMP:20260428T021913Z
UID:8b039ebaf4c9ed39aeac05f9cbed13351c0abab6202ddc63b8b998a4
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. M. Marsi\nThe study of quantum materials in out-of-equilib
 rium conditions following excitation with ultrafast lasers represents one 
 of the novel research frontiers in condensed matter physics. With femtosec
 ond optical pulses\, electronic and lattice degrees of freedom can be tran
 siently decoupled\, giving the opportunity of stabilizing new states inacc
 essible by quasi-adiabatic pathways.\n \nThis becomes particularly intere
 sting for the study of strongly correlated materials\, since their rich ph
 ase diagram often translates into an equally rich out-of-equilibrium behav
 ior\; as well as for the study of topological matter\, where the unique fe
 atures of Dirac fermions turn into peculiar photoconductivity properties a
 fter ultrafast excitation. Selected studies of prototype Mott-Hubbard comp
 ounds and topological materials will be discussed in more detail\; in part
 icular\, it will be shown how the combination of different time-resolved e
 xperimental techniques - ARPES\, optical reflectivity\, FEL-based X-ray di
 ffraction [1] – can give access to the evolution of both electrons and l
 attice\, providing a complete picture of out-of-equilibrium quantum matter
 .\n\nReference:\n[1] G. Lantz et al.\, Nat. Commun. 8\, 13917 (2017).\n 
LOCATION:CH G1 495 https://plan.epfl.ch/?room==CH%20G1%20495
STATUS:CONFIRMED
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