Tailoring topological states of core–shell nanoparticles

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 136; p. 115000
• Main Authors: Martínez-Strasser, Carolina, Baba, Yuriko, Díaz-Fernández, Álvaro, Domínguez-Adame, Francisco
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.02.2022
• Subjects: Core–shell nanoparticles; Surface states; Topological insulator; Topological insulator; Core–shell nanoparticles; Surface states

In this work we investigate novel spherical core–shell nanoparticles with band inversion. The core and the embedding medium are normal semiconductors while the shell material is assumed to be a topological insulator. The envelope functions are found to satisfy a Dirac-like equation that can be solve...