Giant spin signals in chemically functionalized multiwall carbon nanotubes
| Autor: | Roméo, Bonnet, Pascal, Martin, Stéphan, Suffit, Philippe, Lafarge, Aurélien, Lherbier, Jean-Christophe, Charlier, Maria Luisa, Della Rocca, Clément, Barraud |
|---|---|
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| Popis: | A spin information is efficiently transmitted through a chemically modified multiwall carbon nanotube. Transporting quantum information such as the spin information over micrometric or even millimetric distances is a strong requirement for the next-generation electronic circuits such as low-voltage spin-logic devices. This crucial step of transportation remains delicate in nontopologically protected systems because of the volatile nature of spin states. Here, a beneficial combination of different phenomena is used to approach this sought-after milestone for the beyond–Complementary Metal Oxide Semiconductor (CMOS) technology roadmap. First, a strongly spin-polarized charge current is injected using highly spin-polarized hybridized states emerging at the complex ferromagnetic metal/molecule interfaces. Second, the spin information is brought toward the conducting inner shells of a multiwall carbon nanotube used as a confined nanoguide benefiting from both weak spin-orbit and hyperfine interactions. The spin information is finally electrically converted because of a strong magnetoresistive effect. The experimental results are also supported by calculations qualitatively revealing exceptional spin transport properties of this system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|