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Nanoelectronique et Métrologie
(3) Production(s) de l'année 2024
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Landau emission from 2D Dirac fermions in HgTe QWs 
Auteur(s): Consejo C.
Conference: 5th FR – CZ Barrande workshop on Nanotechnologies Photonics & Electronics (Prague, CZ, 2024-06-05)
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Dirac‐Like Fermions Anomalous Magneto‐Transport in a Spin‐Polarized Oxide 2D Electron System
Auteur(s): Chen Yu, d'Antuono Maria, Trama Mattia, Preziosi Daniele, Jouault B., Teppe F., Consejo C., Perroni Carmine, Citro Roberta, Stornaiuolo Daniela, Salluzzo Marco
(Article) Publié:
Advanced Materials, vol. p. (2024)
Texte intégral en Openaccess : 
Ref HAL: hal-04787863_v1
Ref Arxiv: 2406.14029v1
DOI: 10.1002/adma.202410354
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé: Abstract In a 2D electron system (2DES) the breaking of the inversion, time‐reversal and bulk crystal‐field symmetries is interlaced with the effects of spin‐orbit coupling (SOC) triggering exotic quantum phenomena. Here, epitaxial engineering is used to design and realize a 2DES characterized simultaneously by ferromagnetic order, large Rashba SOC and hexagonal band warping at the (111) interfaces between LaAlO 3 , EuTiO 3 , and SrTiO 3 insulators. The 2DES displays anomalous quantum corrections to the magneto‐conductance driven by the time‐reversal‐symmetry breaking occurring below the magnetic transition temperature. The results are explained by the emergence of a non‐trivial Berry phase and competing weak anti‐localization/weak localization back‐scattering of Dirac‐like fermions, mimicking the phenomenology of gapped topological insulators. These findings open perspectives for the engineering of novel spin‐polarized functional 2DES holding promises in spin‐orbitronics and topological electronics.
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Terahertz and gigahertz magnetoratchets in graphene-based two-dimensional metamaterials
Auteur(s): Hild M., Mönch E., Golub L., Dmitriev I., Yahniuk I., Amann K., Amann J., Eroms J., Wunderlich J., Weiss D., Consejo C., Bray C., Maussang K., Teppe F., Gumenjuk-Sichevska J., Watanabe K., Taniguchi T., Ganichev S.
(Article) Publié:
Physical Review B, vol. 110 p.125303 (2024)
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