scholarly journals Establishing nonthermal regimes in pump-probe electron relaxation dynamics

2020 ◽  
Vol 102 (18) ◽  
Author(s):  
M. X. Na ◽  
F. Boschini ◽  
A. K. Mills ◽  
M. Michiardi ◽  
R. P. Day ◽  
...  
2021 ◽  
Author(s):  
Meng Xing Na ◽  
Fabio Boschini ◽  
Arthur K. Mills ◽  
Matteo Michiardi ◽  
Ryan P. Day ◽  
...  

2007 ◽  
Vol 126 (23) ◽  
pp. 234707 ◽  
Author(s):  
Ádám Madarász ◽  
Peter J. Rossky ◽  
László Turi

Author(s):  
Valérie Blanchet ◽  
Dominique Descamps ◽  
stephane Petit ◽  
Yann Mairesse ◽  
bernard Pons ◽  
...  

We study isomeric effects using time resolved photoelectron circular dichroism (PECD). By a (1+1’)pump-probe ionisation with photoelectron collected by velocity map imaging technique, we compare relaxation dynamics from the 3s-Rydberg...


ChemPhysChem ◽  
2015 ◽  
Vol 17 (2) ◽  
pp. 310-316 ◽  
Author(s):  
Lihong Wu ◽  
Maolin Bo ◽  
Yongling Guo ◽  
Yan Wang ◽  
Can Li ◽  
...  

2011 ◽  
Vol 84 (17) ◽  
Author(s):  
Y. Toda ◽  
T. Mertelj ◽  
P. Kusar ◽  
T. Kurosawa ◽  
M. Oda ◽  
...  

2021 ◽  
Author(s):  
Jacob Garcia ◽  
Scott Sayres

Understanding the role of defect sites on the mechanism and lifetime of photoexcited state relaxation is critical for the ration-al design of advanced materials. Here, the ultrafast electronic relaxation dynamics of neutral nickel oxide clusters were inves-tigated with femtosecond pump-probe spectroscopy and supported with theoretical calculations to reveal that their excited state lifetimes are strongly dependent on the nature of the electronic transition. Absorption of a UV photon produces short lived (lifetime ~110 fs) dynamics in stoichiometric (NiO)n clusters (n < 6) that are attributed to a ligand to metal charge transfer (LMCT) and produces metallic-like electron-electron scattering. Oxygen vacancies introduce excitations with Ni-3d→Ni-4s and 3d→4p character, which increases the lifetimes of the sub-picosecond response by up to 80% and enables the formation of long-lived (lifetimes > 2.5 ps) states. The atomic precision and tunability of gas phase clusters are employed to highlight a unique reliance on the Ni orbital contributions to the photoexcited lifetimes, providing new insights to the anal-ogous band edge excitation dynamics of strongly correlated bulk-scale NiO materials.


1991 ◽  
Vol 152 (3) ◽  
pp. 353-364 ◽  
Author(s):  
S.R. Kreitzman

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