Search: onr:"swepub:oai:lup.lub.lu.se:26e06c5d-4ea1-4d68-b7a7-5e154f4a982d" > Current-driven insu...
Fältnamn | Indikatorer | Metadata |
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000 | 03870naa a2200505 4500 | |
001 | oai:lup.lub.lu.se:26e06c5d-4ea1-4d68-b7a7-5e154f4a982d | |
003 | SwePub | |
008 | 240112s2023 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/26e06c5d-4ea1-4d68-b7a7-5e154f4a982d2 URI |
024 | 7 | a https://doi.org/10.1103/PhysRevB.108.L1611052 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Curcio, Davideu Aarhus University4 aut |
245 | 1 0 | a Current-driven insulator-to-metal transition without Mott breakdown in Ca2RuO4 |
264 | 1 | c 2023 |
520 | a The electrical control of a material's conductivity is at the heart of modern electronics. Conventionally, this control is achieved by tuning the density of mobile charge carriers. A completely different approach is possible in Mott insulators such as Ca2RuO4, where an insulator-to-metal transition (IMT) can be induced by a weak electric field or current. While the driving force of the IMT is poorly understood, it has been thought to be a breakdown of the Mott state. Using in operando angle-resolved photoemission spectroscopy, we show that this is not the case: The current-induced conductivity is caused by the formation of in-gap states with only a minor reorganization of the Mott state. Electronic structure calculations show that these in-gap states form at the boundaries of structural domains that emerge during the IMT. At such boundaries, the overall gap is drastically reduced, even if the structural difference between the domains is small and the individual domains retain their Mott character. The inhomogeneity of the sample is thus key to understanding the IMT, as it leads to a nonequilibrium semimetallic state that forms at the interface of Mott domains. | |
650 | 7 | a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng |
700 | 1 | a Sanders, Charlotte E.4 aut |
700 | 1 | a Chikina, Allau Aarhus University4 aut |
700 | 1 | a Lund, Henriette E.u Aarhus University4 aut |
700 | 1 | a Bianchi, Marcou Aarhus University4 aut |
700 | 1 | a Granata, Veronicau University of Salerno4 aut |
700 | 1 | a Cannavacciuolo, Marcou University of Salerno4 aut |
700 | 1 | a Cuono, Giuseppeu Institute of Physics of the Polish Academy of Sciences4 aut |
700 | 1 | a Autieri, Carmineu Institute of Physics of the Polish Academy of Sciences4 aut |
700 | 1 | a Forte, Filomena4 aut |
700 | 1 | a Avallone, Guerinou University of Salerno4 aut |
700 | 1 | a Romano, Alfonsou University of Salerno4 aut |
700 | 1 | a Cuoco, Mario4 aut |
700 | 1 | a Dudin, Pavelu Synchrotron SOLEIL4 aut |
700 | 1 | a Avila, Joseu Synchrotron SOLEIL4 aut |
700 | 1 | a Polley, Craigu Lund University,Lunds universitet,MAX IV, Bloch,MAX IV, Spektroskopi I,MAX IV, Vetenskapsavdelning,MAX IV-laboratoriet,MAX IV, Bloch,MAX IV,Spectroscopy I,MAX IV, Science division,MAX IV Laboratory4 aut0 (Swepub:lu)cr4837po |
700 | 1 | a Balasubramanian, Thiagarajanu Lund University,Lunds universitet,MAX IV, Bloch,MAX IV, Spektroskopi I,MAX IV, Vetenskapsavdelning,MAX IV-laboratoriet,MAX IV, Bloch,MAX IV,Spectroscopy I,MAX IV, Science division,MAX IV Laboratory4 aut0 (Swepub:lu)maxl-bth |
700 | 1 | a Fittipaldi, Rosalba4 aut |
700 | 1 | a Vecchione, Antonio4 aut |
700 | 1 | a Hofmann, Philipu Aarhus University4 aut |
710 | 2 | a Aarhus Universityb University of Salerno4 org |
773 | 0 | t Physical Review Bg 108:16q 108:16x 2469-9950 |
856 | 4 | u http://dx.doi.org/10.1103/PhysRevB.108.L161105y FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/26e06c5d-4ea1-4d68-b7a7-5e154f4a982d |
856 | 4 8 | u https://doi.org/10.1103/PhysRevB.108.L161105 |
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