title: Room-temperature tunnel magnetoresistance in self-assembled chemically synthesized metallic iron nanoparticles.
abstract: We report on room temperature magnetoresistance in networks of chemically synthesized metallic Fe nanoparticles surrounded by two types of organic barriers. Electrical properties, featuring Coulomb blockade, and magnetotransport measurements show that this magnetoresistance arises from spin-dependent tunnelling, so the organic ligands stabilizing the nanoparticles are efficient spin-conservative tunnel barrier. These results demonstrate the feasibility of an all-chemistry approach for room temperature spintronics.
authors.affiliation: Université de Toulouse, INSA, UPS, LPCNO, 135, avenue de Rangueil, F-31077 Toulouse, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Dugay
authors.forename: Reasmey P
authors.initials: RP
authors.lastname: Tan
authors.forename: Anca
authors.initials: A
authors.lastname: Meffre
authors.forename: Thomas
authors.initials: T
authors.lastname: Blon
authors.forename: Lise-Marie
authors.initials: LM
authors.lastname: Lacroix
authors.forename: Julian
authors.initials: J
authors.lastname: Carrey
authors.forename: Pier F
authors.initials: PF
authors.lastname: Fazzini
authors.forename: Sébastien
authors.initials: S
authors.lastname: Lachaize
authors.forename: Bruno
authors.initials: B
authors.lastname: Chaudret
authors.forename: Marc
authors.initials: M
authors.lastname: Respaud