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Sökning: onr:"swepub:oai:lup.lub.lu.se:26e06c5d-4ea1-4d68-b7a7-5e154f4a982d" > Current-driven insu...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003870naa a2200505 4500
001oai:lup.lub.lu.se:26e06c5d-4ea1-4d68-b7a7-5e154f4a982d
003SwePub
008240112s2023 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/26e06c5d-4ea1-4d68-b7a7-5e154f4a982d2 URI
0247 a https://doi.org/10.1103/PhysRevB.108.L1611052 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Curcio, Davideu Aarhus University4 aut
2451 0a Current-driven insulator-to-metal transition without Mott breakdown in Ca2RuO4
264 1c 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 7a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng
7001 a Sanders, Charlotte E.4 aut
7001 a Chikina, Allau Aarhus University4 aut
7001 a Lund, Henriette E.u Aarhus University4 aut
7001 a Bianchi, Marcou Aarhus University4 aut
7001 a Granata, Veronicau University of Salerno4 aut
7001 a Cannavacciuolo, Marcou University of Salerno4 aut
7001 a Cuono, Giuseppeu Institute of Physics of the Polish Academy of Sciences4 aut
7001 a Autieri, Carmineu Institute of Physics of the Polish Academy of Sciences4 aut
7001 a Forte, Filomena4 aut
7001 a Avallone, Guerinou University of Salerno4 aut
7001 a Romano, Alfonsou University of Salerno4 aut
7001 a Cuoco, Mario4 aut
7001 a Dudin, Pavelu Synchrotron SOLEIL4 aut
7001 a Avila, Joseu Synchrotron SOLEIL4 aut
7001 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
7001 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
7001 a Fittipaldi, Rosalba4 aut
7001 a Vecchione, Antonio4 aut
7001 a Hofmann, Philipu Aarhus University4 aut
7102 a Aarhus Universityb University of Salerno4 org
7730 t Physical Review Bg 108:16q 108:16x 2469-9950
8564 u http://dx.doi.org/10.1103/PhysRevB.108.L161105y FULLTEXT
8564 8u https://lup.lub.lu.se/record/26e06c5d-4ea1-4d68-b7a7-5e154f4a982d
8564 8u https://doi.org/10.1103/PhysRevB.108.L161105

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