Article Dans Une Revue Science Advances Année : 2020

Giant spin signals in chemically functionalized multiwall carbon nanotubes

Résumé

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.

Dates et versions

hal-03247472 , version 1 (03-06-2021)

Identifiants

Citer

Roméo Bonnet, Pascal Martin, Stéphan Suffit, Philippe Lafarge, Aurélien Lherbier, et al.. Giant spin signals in chemically functionalized multiwall carbon nanotubes. Science Advances , 2020, 6 (31), pp.eaba5494. ⟨10.1126/sciadv.aba5494⟩. ⟨hal-03247472⟩
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