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Orbital dynamics during an ultrafast insulator to metal transition

Parchenko, Sergii ; Paris, Eugenio ; McNally, Daniel ; Abreu, Elsa ; Dantz, Markus ; Bothschafter, Elisabeth M. ; Reid, Alexander H. ; Schlotter, William F. ; Lin, Ming Fu and Wandel, Scott F. , et al. (2020) In Physical Review Research 2(2).
Abstract

We present ultrafast resonant inelastic X-ray scattering (RIXS) experiments performed at the vanadium L edge to track changes in the electronic structure of V2O3, a classical Mott-Hubbard material. The probed orbital excitations within the d shell of the V ion show a sub-ps time response, which evolves at later times to a state that appears electronically indistinguishable from the high-temperature metallic state. For low excitation fluences, a transient recovery or delay is observed, which could be related to a transient dimerization of the V-V bonds. Our results demonstrate the great potential for RIXS spectroscopy to study the ultrafast orbital dynamics in strongly correlated materials.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
2
issue
2
article number
023110
publisher
American Physical Society
external identifiers
  • scopus:85092652785
ISSN
2643-1564
DOI
10.1103/PhysRevResearch.2.023110
language
English
LU publication?
yes
id
0c22b90e-2931-4d51-b4c7-2605d138f513
date added to LUP
2022-04-01 16:15:19
date last changed
2022-04-24 23:57:34
@article{0c22b90e-2931-4d51-b4c7-2605d138f513,
  abstract     = {{<p>We present ultrafast resonant inelastic X-ray scattering (RIXS) experiments performed at the vanadium L edge to track changes in the electronic structure of V2O3, a classical Mott-Hubbard material. The probed orbital excitations within the d shell of the V ion show a sub-ps time response, which evolves at later times to a state that appears electronically indistinguishable from the high-temperature metallic state. For low excitation fluences, a transient recovery or delay is observed, which could be related to a transient dimerization of the V-V bonds. Our results demonstrate the great potential for RIXS spectroscopy to study the ultrafast orbital dynamics in strongly correlated materials.</p>}},
  author       = {{Parchenko, Sergii and Paris, Eugenio and McNally, Daniel and Abreu, Elsa and Dantz, Markus and Bothschafter, Elisabeth M. and Reid, Alexander H. and Schlotter, William F. and Lin, Ming Fu and Wandel, Scott F. and Coslovich, Giacomo and Zohar, Sioan and Dakovski, Georgi L. and Turner, J. J. and Moeller, S. and Tseng, Yi and Radovic, Milan and Saathe, Conny and Agaaker, Marcus and Nordgren, Joseph E. and Johnson, Steven L. and Schmitt, Thorsten and Staub, Urs}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{Orbital dynamics during an ultrafast insulator to metal transition}},
  url          = {{http://dx.doi.org/10.1103/PhysRevResearch.2.023110}},
  doi          = {{10.1103/PhysRevResearch.2.023110}},
  volume       = {{2}},
  year         = {{2020}},
}