Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V2O3

Thees, Maximilian ; Lee, Min Han ; Bouwmeester, Rosa Luca ; Rezende-Gonçalves, Pedro H. ; David, Emma ; Zimmers, Alexandre ; Fortuna, Franck ; Frantzeskakis, Emmanouil ; Vargas, Nicolas M. and Kalcheim, Yoav , et al. (2021) In Science Advances 7(45).
Abstract

In solids, strong repulsion between electrons can inhibit their movement and result in a “Mott” metal-to-insulator transition (MIT), a fundamental phenomenon whose understanding has remained a challenge for over 50 years. A key issue is how the wave-like itinerant electrons change into a localized-like state due to increased interactions. However, observing the MIT in terms of the energy- and momentum-resolved electronic structure of the system, the only direct way to probe both itinerant and localized states, has been elusive. Here we show, using angle-resolved photoemission spectroscopy (ARPES), that in V2O3, the temperature-induced MIT is characterized by the progressive disappearance of its itinerant conduction... (More)

In solids, strong repulsion between electrons can inhibit their movement and result in a “Mott” metal-to-insulator transition (MIT), a fundamental phenomenon whose understanding has remained a challenge for over 50 years. A key issue is how the wave-like itinerant electrons change into a localized-like state due to increased interactions. However, observing the MIT in terms of the energy- and momentum-resolved electronic structure of the system, the only direct way to probe both itinerant and localized states, has been elusive. Here we show, using angle-resolved photoemission spectroscopy (ARPES), that in V2O3, the temperature-induced MIT is characterized by the progressive disappearance of its itinerant conduction band, without any change in its energy-momentum dispersion, and the simultaneous shift to larger binding energies of a quasi-localized state initially located near the Fermi level.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science Advances
volume
7
issue
45
article number
eabj1164
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • scopus:85118679778
  • pmid:34730993
ISSN
2375-2548
DOI
10.1126/sciadv.abj1164
language
English
LU publication?
yes
additional info
Publisher Copyright: Copyright © 2021 The Authors, some rights reserved;
id
ae867892-52e7-459e-9c12-045ba31f63b6
date added to LUP
2021-11-25 11:09:23
date last changed
2021-11-26 03:00:10
@article{ae867892-52e7-459e-9c12-045ba31f63b6,
  abstract     = {<p>In solids, strong repulsion between electrons can inhibit their movement and result in a “Mott” metal-to-insulator transition (MIT), a fundamental phenomenon whose understanding has remained a challenge for over 50 years. A key issue is how the wave-like itinerant electrons change into a localized-like state due to increased interactions. However, observing the MIT in terms of the energy- and momentum-resolved electronic structure of the system, the only direct way to probe both itinerant and localized states, has been elusive. Here we show, using angle-resolved photoemission spectroscopy (ARPES), that in V<sub>2</sub>O<sub>3</sub>, the temperature-induced MIT is characterized by the progressive disappearance of its itinerant conduction band, without any change in its energy-momentum dispersion, and the simultaneous shift to larger binding energies of a quasi-localized state initially located near the Fermi level.</p>},
  author       = {Thees, Maximilian and Lee, Min Han and Bouwmeester, Rosa Luca and Rezende-Gonçalves, Pedro H. and David, Emma and Zimmers, Alexandre and Fortuna, Franck and Frantzeskakis, Emmanouil and Vargas, Nicolas M. and Kalcheim, Yoav and Fèvre, Patrick Le and Horiba, Koji and Kumigashira, Hiroshi and Biermann, Silke and Trastoy, Juan and Rozenberg, Marcelo J. and Schuller, Ivan K. and Santander-Syro, Andrés F.},
  issn         = {2375-2548},
  language     = {eng},
  number       = {45},
  publisher    = {American Association for the Advancement of Science (AAAS)},
  series       = {Science Advances},
  title        = {Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V<sub>2</sub>O<sub>3</sub>},
  url          = {http://dx.doi.org/10.1126/sciadv.abj1164},
  doi          = {10.1126/sciadv.abj1164},
  volume       = {7},
  year         = {2021},
}