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Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)

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-l...

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Autores principales: Thees, Maximilian, Lee, Min-Han, Bouwmeester, Rosa Luca, Rezende-Gonçalves, Pedro H., David, Emma, Zimmers, Alexandre, Fortuna, Franck, Frantzeskakis, Emmanouil, Vargas, Nicolas M., Kalcheim, Yoav, Le Fèvre, Patrick, Horiba, Koji, Kumigashira, Hiroshi, Biermann, Silke, Trastoy, Juan, Rozenberg, Marcelo J., Schuller, Ivan K., Santander-Syro, Andrés F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8565841/
https://www.ncbi.nlm.nih.gov/pubmed/34730993
http://dx.doi.org/10.1126/sciadv.abj1164
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author Thees, Maximilian
Lee, Min-Han
Bouwmeester, Rosa Luca
Rezende-Gonçalves, Pedro H.
David, Emma
Zimmers, Alexandre
Fortuna, Franck
Frantzeskakis, Emmanouil
Vargas, Nicolas M.
Kalcheim, Yoav
Le Fèvre, Patrick
Horiba, Koji
Kumigashira, Hiroshi
Biermann, Silke
Trastoy, Juan
Rozenberg, Marcelo J.
Schuller, Ivan K.
Santander-Syro, Andrés F.
author_facet Thees, Maximilian
Lee, Min-Han
Bouwmeester, Rosa Luca
Rezende-Gonçalves, Pedro H.
David, Emma
Zimmers, Alexandre
Fortuna, Franck
Frantzeskakis, Emmanouil
Vargas, Nicolas M.
Kalcheim, Yoav
Le Fèvre, Patrick
Horiba, Koji
Kumigashira, Hiroshi
Biermann, Silke
Trastoy, Juan
Rozenberg, Marcelo J.
Schuller, Ivan K.
Santander-Syro, Andrés F.
author_sort Thees, Maximilian
collection PubMed
description 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(2)O(3), 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.
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spelling pubmed-85658412021-11-17 Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3) Thees, Maximilian Lee, Min-Han Bouwmeester, Rosa Luca Rezende-Gonçalves, Pedro H. David, Emma Zimmers, Alexandre Fortuna, Franck Frantzeskakis, Emmanouil Vargas, Nicolas M. Kalcheim, Yoav Le Fèvre, Patrick Horiba, Koji Kumigashira, Hiroshi Biermann, Silke Trastoy, Juan Rozenberg, Marcelo J. Schuller, Ivan K. Santander-Syro, Andrés F. Sci Adv Physical and Materials Sciences 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(2)O(3), 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. American Association for the Advancement of Science 2021-11-03 /pmc/articles/PMC8565841/ /pubmed/34730993 http://dx.doi.org/10.1126/sciadv.abj1164 Text en Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Thees, Maximilian
Lee, Min-Han
Bouwmeester, Rosa Luca
Rezende-Gonçalves, Pedro H.
David, Emma
Zimmers, Alexandre
Fortuna, Franck
Frantzeskakis, Emmanouil
Vargas, Nicolas M.
Kalcheim, Yoav
Le Fèvre, Patrick
Horiba, Koji
Kumigashira, Hiroshi
Biermann, Silke
Trastoy, Juan
Rozenberg, Marcelo J.
Schuller, Ivan K.
Santander-Syro, Andrés F.
Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)
title Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)
title_full Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)
title_fullStr Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)
title_full_unstemmed Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)
title_short Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V(2)O(3)
title_sort imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in v(2)o(3)
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8565841/
https://www.ncbi.nlm.nih.gov/pubmed/34730993
http://dx.doi.org/10.1126/sciadv.abj1164
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