Molecular beam epitaxy of superconducting <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>FeS</mml:mi><mml:msub><mml:mi mathvariant="normal">e</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mi mathvariant="normal">T</mml:mi><mml:msub><mml:mi mathvariant="normal">e</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> thin films interfaced with magnetic topological insulators
Yuki Sato, S. Nagahama, Ilya Belopolski, Ryutaro Yoshimi, Minoru Kawamura, Atsushi Tsukazaki, Naoya Kanazawa, Kei Takahashi, M. Kawasaki, Yoshinori Tokura
Abstract
The observation of Majorana anyons is a long-sought challenge in physics, but has been hindered by lack of high-quality materials. The authors fabricate a heterostructure with an atomically sharp interface between a quantum anomalous Hall insulator and superconductor, for the first time. This unique quantum material should enable the unambiguous observation of chiral Majorana edge states and braiding of non-Abelian anyons without magnetic field.
Topics & Concepts
Materials scienceMolecular beam epitaxyEpitaxySuperconductivityCrystallographyPhysicsCondensed matter physicsNanotechnologyChemistryLayer (electronics)Iron-based superconductors researchTopological Materials and PhenomenaAdvanced Condensed Matter Physics