TY - JOUR
T1 - Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V2O3
AU - Thees, Maximilian
AU - Lee, Min Han
AU - Bouwmeester, Rosa Luca
AU - Rezende-Gonçalves, Pedro H.
AU - David, Emma
AU - Zimmers, Alexandre
AU - Fortuna, Franck
AU - Frantzeskakis, Emmanouil
AU - Vargas, Nicolas M.
AU - Kalcheim, Yoav
AU - Fèvre, Patrick Le
AU - Horiba, Koji
AU - Kumigashira, Hiroshi
AU - Biermann, Silke
AU - Trastoy, Juan
AU - Rozenberg, Marcelo J.
AU - Schuller, Ivan K.
AU - Santander-Syro, Andrés F.
N1 - Publisher Copyright:
Copyright © 2021 The Authors, some rights reserved;
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85118679778
U2 - 10.1126/sciadv.abj1164
DO - 10.1126/sciadv.abj1164
M3 - Article
C2 - 34730993
AN - SCOPUS:85118679778
SN - 2375-2548
VL - 7
JO - Science Advances
JF - Science Advances
IS - 45
M1 - eabj1164
ER -