Polarization of electron spin and orbitals from structural chirality: spin-selective transport in chiral molecular junctions

Peng Xiong

doi:10.1117/12.3028293

4 October 2024 Polarization of electron spin and orbitals from structural chirality: spin-selective transport in chiral molecular junctions

Peng Xiong

Author Affiliations +

Proceedings Volume PC13119, Spintronics XVII; PC131191X (2024) https://doi.org/10.1117/12.3028293
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Breaking of spatial inversion symmetry has profound effects on the electronic properties of materials. One prominent manifestation of such effects of much recent interest is chirality-induced spin selectivity (CISS), where real-space structural chirality induces spin polarization of electrons injected from a nonmagnetic normal metal electrode. CISS has been reported in a variety of chiral molecules and inorganic chiral crystals, however, definitive understanding of its physical origin remains elusive. We have studied the CISS effect through measurements of spin-selective transport in chiral molecular junctions on magnetic (GaMnAs) and nonmagnetic (n-GaAs) semiconductors. The robust semiconductor-based device platform enabled a rigorous examination of the bias-dependence of the CISS effect and revealed a key role of the spin-orbit coupling in the normal metal electrode. Our experiments have provided new insights on CISS and demonstrated its potential for enabling semiconductor spintronics free of any magnetic materials.

Conference Presentation

Citation Download Citation

Peng Xiong "Polarization of electron spin and orbitals from structural chirality: spin-selective transport in chiral molecular junctions", Proc. SPIE PC13119, Spintronics XVII, PC131191X (4 October 2024); https://doi.org/10.1117/12.3028293

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

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Semiconductors

Electron transport

Polarization

Electrodes

Magnetism

Metals

Magnetic semiconductors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years