Efficient Transfer of Chirality in Complex Hybrid Materials and Impact on Chirality-induced Spin Selectivity DOI Creative Commons
Md Anik Hossain, Sara Illescas‐Lopez, Md. Wazedur Rahman

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(23), P. 11449 - 11461

Published: Nov. 20, 2024

Transfer of chirality, or transmission asymmetric information from one system to another, plays an essential role in fundamental biological and chemical processes and, therefore, is for life. This phenomenon also holds immense potential spintronics the context chirality-induced spin selectivity (CISS). In CISS, spatial arrangement chiral molecules influences state electrons during charge-transfer processes. chirality achiral material a hybrid environment enables induction polarization material, thus vastly expanding library CISS-active electronic materials. Such "induced" CISS signals could have different responses compared pure because properties come into play former case. addition, multiple sources can be used, which nontrivial contribution induced effect act either synergistically antagonistically. opens way achieving tunability via means. Earlier, such chirality-transfer resulting were demonstrated containing carbon nanotubes (CNTs) functionalized with agent (Fmoc-diphenylalanine l/d). this context, we extend result by investigating additional moiety (l-lysozyme enzyme crystals) system. Here, crystal surrounds chiral-functionalized CNTs, show that synergistic interactions more efficient transfer, changes effect. manifests form (a) stronger signal only single agent, (b) nonmonotonic temperature dependence sign reversal signal, (c) persistence at higher temperatures. Hybrid materials could, offer intricate control modification its constituents, not possible homogeneous systems sources.

Language: Английский

Hanle spin precession induced inverted magnetoresistance in chiral/semiconductor systems DOI Creative Commons
Sytze H. Tirion, B. J. van Wees

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(3)

Published: Jan. 20, 2025

In the past decade, chiral materials have drawn significant attention because it is widely claimed that they can act as spin injectors/detectors due to chirality-induced selectivity effect. Nevertheless, microscopic origin of this effect not understood, which generates need for transport experiments confirm spin-dependent in materials. Hanle precession measurements unambiguously prove injection and detection a accumulation non-magnetic material, was shown with traditional ferromagnetic injectors/detectors. Here, we model analyze detail precession-induced magnetoresistance chiral/semiconductor systems find signal inverted compared case. We explicitly by both system system, well semiconductor, general set (spin) parameters cover relevant experimental regime. For all sets parameters, signals ferromagnet are each other's opposites. also discuss implications four terminal nonlocal separate injector detectors.

Language: Английский

Citations

0
Transfer of Chirality in Complex Hybrid Materials for Chirality-Induced Spin Selectivity DOI
Md Anik Hossain, Sara Illescas‐Lopez, Md. Wazedur Rahman

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Efficient Transfer of Chirality in Complex Hybrid Materials and Impact on Chirality-induced Spin Selectivity DOI Creative Commons
Md Anik Hossain, Sara Illescas‐Lopez, Md. Wazedur Rahman

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(23), P. 11449 - 11461

Published: Nov. 20, 2024

Transfer of chirality, or transmission asymmetric information from one system to another, plays an essential role in fundamental biological and chemical processes and, therefore, is for life. This phenomenon also holds immense potential spintronics the context chirality-induced spin selectivity (CISS). In CISS, spatial arrangement chiral molecules influences state electrons during charge-transfer processes. chirality achiral material a hybrid environment enables induction polarization material, thus vastly expanding library CISS-active electronic materials. Such "induced" CISS signals could have different responses compared pure because properties come into play former case. addition, multiple sources can be used, which nontrivial contribution induced effect act either synergistically antagonistically. opens way achieving tunability via means. Earlier, such chirality-transfer resulting were demonstrated containing carbon nanotubes (CNTs) functionalized with agent (Fmoc-diphenylalanine l/d). this context, we extend result by investigating additional moiety (l-lysozyme enzyme crystals) system. Here, crystal surrounds chiral-functionalized CNTs, show that synergistic interactions more efficient transfer, changes effect. manifests form (a) stronger signal only single agent, (b) nonmonotonic temperature dependence sign reversal signal, (c) persistence at higher temperatures. Hybrid materials could, offer intricate control modification its constituents, not possible homogeneous systems sources.

Language: Английский

Citations

0