2026-06-27T15:46:25Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/45042023-08-25T17:57:29Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Arias Egido, E.
author
Laguna Marco, M. A.
author
Piquer, C.
author
Jiménez Cabero, P.
author
Lucas, I.
author
Morellón, L.
author
Gallego Toledo, Fernando
author
Rivera Calzada, Alberto Carlos
author
Cabero Piris, Mariona
author
Santamaría Sánchez-Barriga, Jacobo
author
Fabbris, G.
author
Haskel, D.
author
Boada, R.
author
Díaz Moreno, S.
2023-06-16T14:16:51Z
2023-06-16T14:16:51Z
2021-10-21
2040-3364
10.1039/d1nr04207f
https://hdl.handle.net/20.500.14352/4504
http://dx.doi.org/10.1039/d1nr04207f
https://pubs.rsc.org/
A metal-insulator transition is observed in spin-orbit-coupled IrO_2 thin films upon reduction of the film thickness. In the epitaxially grown samples, the critical thickness (t similar to 1.5-2.2 nm) is found to depend on growth orientation (001), (100) or (110). Interestingly from the applied point of view, the insulating behavior is found even in polycrystalline ultrathin films. By analyzing the experimental electrical response with various theoretical models, we find good fits to the Efros-Shklovskii-VRH and the Arrhenius-type behaviors, which suggests an important role of electron correlations in determining the electrical properties of IrO_2. Our magnetic measurements also point to a significant role of magnetic order. Altogether, our results would point to a mixed Slater- and Mott-type of insulator.
eng
Atribución-NoComercial 3.0 España
Dimensionality-driven metal-insulator transition in spin-orbit-coupled IrO_2
journal article
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https://docta.ucm.es/bitstreams/81da60b2-15c1-481e-b0df-929c752dc7c7/download
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MD5
446d6755d239e29e3e62b6acb692a606
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application/pdf
Rivera-Calzada, AC 03 Libre+CC(nc).pdf
URL
https://docta.ucm.es/bitstreams/a26296d2-0694-46e7-9488-28387bc0bb4a/download
File
MD5
e483b1ad5f43da3b70811ca13b5b9cfe
49199
text/plain
Rivera-Calzada, AC 03 Libre+CC(nc).pdf.txt