Inverse chirality-induced spin selectivity effect in chiral assemblies of π-conjugated polymers
[1];
[2];
[3];
[3];
[2];
[4];
[2];
[6];
[2];
[3]
- North Carolina State University, Raleigh, NC (United States); North Carolina State University
- University of Illinois at Urbana-Champaign, IL (United States)
- North Carolina State University, Raleigh, NC (United States)
- Duke University, Durham, NC (United States)
- University of North Carolina at Chapel Hill, NC (United States)
- Sivananthan Laboratories, Bolingbrook, IL (United States)
Coupling of spin and charge currents to structural chirality in non-magnetic materials, known as chirality-induced spin selectivity, is promising for application in spintronic devices at room temperature. Although the chirality-induced spin selectivity effect has been identified in various chiral materials, its Onsager reciprocal process, the inverse chirality-induced spin selectivity effect, remains unexplored. Here we report the observation of the inverse chirality-induced spin selectivity effect in chiral assemblies of π-conjugated polymers. Using spin-pumping techniques, the inverse chirality-induced spin selectivity effect enables quantification of the magnitude of the longitudinal spin-to-charge conversion driven by chirality-induced spin selectivity in different chiral polymers. By widely tuning conductivities and supramolecular chiral structures via a printing method, we found a very long spin relaxation time of up to several nanoseconds parallel to the chiral axis. Furthermore, our demonstration of the inverse chirality-induced spin selectivity effect suggests possibilities for elucidating the puzzling interplay between spin and chirality, and opens a route for spintronic applications using printable chiral assemblies.
- Research Organization:
- North Carolina State University, Raleigh, NC (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0020992
- OSTI ID:
- 2349518
- Journal Information:
- Nature Materials, Journal Name: Nature Materials Vol. 23; ISSN 1476-1122
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interplay between Chiro-Optical and Spin Transport Properties in Chiral CdSe Quantum Dots
Recent advancements in chiral spintronics: from molecular-level insights to device applications. A prospect based on the interplay between physical and chemical properties of chiral systems