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Related Experiment Video

Updated: May 7, 2025

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Chiral-induced unidirectional spin-to-charge conversion.

Ashish Moharana¹, Yael Kapon^2,3, Fabian Kammerbauer¹

¹Institute of Physics, Johannes Gutenberg University Mainz, Mainz 55128, Germany.

Science Advances

|January 1, 2025

Summary

Chiral-induced spin selectivity (CISS) in hybrid materials shows potential for spintronics. This study confirms spin angular momentum

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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

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Area of Science:

Condensed Matter Physics
Materials Science
Organic Electronics

Background:

Chiral-induced spin selectivity (CISS) arises from spin-dependent electron transport in chiral molecules.
CISS exhibits high efficiency, promising for sustainable spintronic applications.
The underlying mechanisms of CISS require further elucidation.

Purpose of the Study:

To investigate the influence of chirality on spin angular momentum in hybrid metal/chiral molecule thin films.
To explore spin-to-charge conversion at hybrid chiral interfaces using spin current injection.

Main Methods:

Fabrication of hybrid metal/chiral molecule thin-film heterostructures.
Injection of pure spin current via spin pumping.
Investigation of spin-to-charge conversion and angle-dependent measurements.

Main Results:

Observed chiral-induced unidirectionality in spin-to-charge conversion at the hybrid interface.
Spin selectivity was maximal when spin angular momentum aligned with the molecular chiral axis.
Demonstrated the critical role of spin angular momentum in the CISS effect.

Conclusions:

Findings validate the importance of spin angular momentum for CISS.
Paves the way for 3D functionalization of hybrid molecule-metal devices using chirality.
Advances understanding of fundamental mechanisms in chiral spintronics.