Spin- and orbital-charge conversion at the surface states of Bi1-xSbx topological insulator

Armando Pezo; Jean-Marie George; Henri Jaffrès

doi:10.1117/12.3028486

4 October 2024 Spin- and orbital-charge conversion at the surface states of Bi_1-xSb_x topological insulator

Armando Pezo, Jean-Marie George, Henri Jaffrès

Author Affiliations +

Proceedings Volume PC13119, Spintronics XVII; PC131191Y (2024) https://doi.org/10.1117/12.3028486
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Topological insulators are quantum materials characterized by Time-reversal protected surface states (TSS) which make them appealing candidates for the design of next generation of highly efficient spintronic devices. The very recent demonstration of large transient spin-charge conversion (SCC) and subsequent powerful THz emission from Co|Bi1-xSbx bilayers clearly demonstrate such potentiality and feasibility for the near future. Amongst the exotic properties appearing in and at the surface of such quantum materials, spin-momentum locking (SML) remains as a key ingredient to effectively convert the spin degree of freedom into a charge or a voltage signal. In that sense, in this work we will provide some clear theoretical and numerical insights implemented by multiorbital and multi-layered tight-binding methods (TB) to clarify our recent experimental results obtained by THz-TDS spectroscopy.

Conference Presentation

Citation Download Citation

Armando Pezo, Jean-Marie George, and Henri Jaffrès "Spin- and orbital-charge conversion at the surface states of Bi_1-xSb_x topological insulator", Proc. SPIE PC13119, Spintronics XVII, PC131191Y (4 October 2024); https://doi.org/10.1117/12.3028486

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE