An international research team, led by Marco Salluzzo’s group at CNR-SPIN, presents the first report of Dirac-like fermion physics induced by nontrivial Berry curvature in oxide two-dimensional electron system (2DES).
Yu Chen at. al. report anomalous magneto-transport dominated by non-trivial Berry curvature and Dirac-like fermions in an epitaxial engineered spin-polarized 2DES at (111) LaAlO3/EuTiO3/SrTiO3 interface, where structural and electronic properties are tailored to mimic that of magnetic gapped topological insulators. These findings open perspectives for the engineering of novel spin-polarized functional 2DES holding promises in spin-orbitronics and topological electronics.
The research was conducted in collaboration with researchers at the University Federico II of Naples and at university of Salerno, with the contribution of international teams of the CNRS-France.
This research was funded by NQSTI MUR Project and by the Path-Finder IQARO Project.
The scientific work is available online in Open Access format on Advanced Materials
DOI: 10.1002/adma.202410354
Title: Dirac-Like Fermions Anomalous Magneto-Transport in a Spin-Polarized Oxide 2D Electron System
Authors: Yu Chen,* Maria D’Antuono, Mattia Trama, Daniele Preziosi, Benoit Jouault, Frédéric Teppe, Christophe Consejo, Carmine A. Perroni, Roberta Citro, Daniela Stornaiuolo,* and Marco Salluzzo*
Institutions: CNR-SPIN (Naples, Italy), CNR-SPIN (Salano, Italy), Department of Physics University of Naples Federico II (Naples, Italy), Department of Physics Universitá degli studi di Salerno (Salerno, Italy), Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504 CNRS (Strasbourg, France), Laboratoire Charles Coulomb-CNRS (Montpellier, France)
