Back to Search
Start Over
Observation of an excitonic Mott transition through ultrafast core-cum-conduction photoemission spectroscopy
- Source :
- Physical Review Letters, Dendzik, M, Xian, R P, Perfetto, E, Sangalli, D, Kutnyakhov, D, Dong, S, Beaulieu, S, Pincelli, T, Pressacco, F, Curcio, D, Agustsson, S Y, Heber, M, Hauer, J, Wurth, W, Brenner, G, Acremann, Y, Hofmann, P, Wolf, M, Marini, A, Stefanucci, G, Rettig, L & Ernstorfer, R 2020, ' Observation of an Excitonic Mott Transition through Ultrafast Core-cum-Conduction Photoemission Spectroscopy ', Physical Review Letters, vol. 125, no. 9, 096401 . https://doi.org/10.1103/PhysRevLett.125.096401, Physical review letters 125(9), 096401: 1-7 (2020). doi:10.1103/PhysRevLett.125.096401, Physical Review Letters, 125 (9), Physical review letters, 125 (2020). doi:10.1103/PhysRevLett.125.096401, info:cnr-pdr/source/autori:Dendzik, Maciej; Xian, R. Patrick; Perfetto, Enrico; Sangalli, Davide; Kutnyakhov, Dmytro; Dong, Shuo; Beaulieu, Samuel; Pincelli, Tommaso; Pressacco, Federico; Curcio, Davide; Agustsson, Steinn Ymir; Heber, Michael; Hauer, Jasper; Wurth, Wilfried; Brenner, Günter; Acremann, Yves; Hofmann, Philip; Wolf, Martin; Marini, Andrea; Stefanucci, Gianluca; Rettig, Laurenz; Ernstorfer, Ralph/titolo:Observation of an Excitonic Mott Transition through Ultrafast Core-cum-Conduction Photoemission Spectroscopy/doi:10.1103%2FPhysRevLett.125.096401/rivista:Physical review letters (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:125
- Publication Year :
- 2020
-
Abstract
- Time-resolved soft-X-ray photoemission spectroscopy is used to simultaneously measure the ultrafast dynamics of core-level spectral functions and excited states upon excitation of excitons in WSe$_2$. We present a many-body approximation for the Green's function, which excellently describes the transient core-hole spectral function. The relative dynamics of excited-state signal and core levels reveals a delayed core-hole renormalization due to screening by excited quasi-free carriers, revealing an excitonic Mott transition. These findings establish time-resolved core-level photoelectron spectroscopy as a sensitive probe of subtle electronic many-body interactions and an ultrafast electronic phase transition.<br />6 pages, 4 figures
- Subjects :
- Time Resolved
Phase transition
Materials science
Photoemission spectroscopy
Exciton
FOS: Physical sciences
General Physics and Astronomy
01 natural sciences
Molecular physics
Condensed Matter - Strongly Correlated Electrons
Core Physics
X-ray photoelectron spectroscopy
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
ddc:530
010306 general physics
Non-equilibrium
Condensed Matter - Materials Science
Settore FIS/03
Strongly Correlated Electrons (cond-mat.str-el)
Condensed Matter - Mesoscale and Nanoscale Physics
Materials Science (cond-mat.mtrl-sci)
3. Good health
Mott transition
Excited state
Many-Body
Ultrashort pulse
Excitation
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Dendzik, M, Xian, R P, Perfetto, E, Sangalli, D, Kutnyakhov, D, Dong, S, Beaulieu, S, Pincelli, T, Pressacco, F, Curcio, D, Agustsson, S Y, Heber, M, Hauer, J, Wurth, W, Brenner, G, Acremann, Y, Hofmann, P, Wolf, M, Marini, A, Stefanucci, G, Rettig, L & Ernstorfer, R 2020, ' Observation of an Excitonic Mott Transition through Ultrafast Core-cum-Conduction Photoemission Spectroscopy ', Physical Review Letters, vol. 125, no. 9, 096401 . https://doi.org/10.1103/PhysRevLett.125.096401, Physical review letters 125(9), 096401: 1-7 (2020). doi:10.1103/PhysRevLett.125.096401, Physical Review Letters, 125 (9), Physical review letters, 125 (2020). doi:10.1103/PhysRevLett.125.096401, info:cnr-pdr/source/autori:Dendzik, Maciej; Xian, R. Patrick; Perfetto, Enrico; Sangalli, Davide; Kutnyakhov, Dmytro; Dong, Shuo; Beaulieu, Samuel; Pincelli, Tommaso; Pressacco, Federico; Curcio, Davide; Agustsson, Steinn Ymir; Heber, Michael; Hauer, Jasper; Wurth, Wilfried; Brenner, Günter; Acremann, Yves; Hofmann, Philip; Wolf, Martin; Marini, Andrea; Stefanucci, Gianluca; Rettig, Laurenz; Ernstorfer, Ralph/titolo:Observation of an Excitonic Mott Transition through Ultrafast Core-cum-Conduction Photoemission Spectroscopy/doi:10.1103%2FPhysRevLett.125.096401/rivista:Physical review letters (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:125
- Accession number :
- edsair.doi.dedup.....a46b5657c24812f80ad9dd716bc52e2e
- Full Text :
- https://doi.org/10.1103/PhysRevLett.125.096401