Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session K21: Emergent Properties: Synthesis and Interfacial Effects
3:00 PM–6:00 PM,
Tuesday, March 5, 2024
Room: 101A
Sponsoring
Unit:
GMAG
Chair: Jennifer Fowlie, Stanford University
Abstract: K21.00007 : Anisotropy in KTaO3 (110)-based two-dimensional electron gases
4:36 PM–4:48 PM
Presenter:
Hugo Witt
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Authors:
Hugo Witt
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Srijani Mallik
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Börge Göbel
(Institute of Physics, Martin-Luther-Universit ̈at Halle-Wittenberg, Halle)
Sara Varotto
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Julien Bréhin
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Luis M Vicente-Arche
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
François Bertran
(Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, Gif-sur-Yvette)
Patrick Le Fèvre
(Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, Gif-sur-Yvette)
Julien Rault
(Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, Gif-sur-Yvette)
Gerbold Ménard
(Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris)
Guilhem Saiz
(Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris)
Isabella Boventer
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Ingrid Mertig
(Institute of Physics, Martin-Luther-Universität Halle-Wittenberg, Halle)
Agnès Barthélémy
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
Nicolas Bergeal
(Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris)
Annika Johansson
(Max Planck Institute of Microstructure Physics, Halle)
Manuel Bibes
(Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, Palaiseau)
As the intermediate system, sharing one high symmetry direction with each other crystalline orientation, (110)-based systems could serve as a gateway for the understanding of the role of interface symmetry in the pairing mechanism. Here, we present ARPES- and transport-based characterisation of KTaO3 (110) 2DEGs. We observe the elliptical and anisotropic Fermi surface and detail the spin texture. Field-effect magnetotransport experiments with microdevices further reveal anisotropy, with non-reciprocal response, and in the superconducting transition.
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