title: Quantum oscillations and ferromagnetic hysteresis observed in iron filled multiwall carbon nanotubes.
abstract: We report on the electrical transport properties of single multiwall carbon nanotubes with and without an iron filling as a function of temperature and magnetic field. For the iron filled nanotubes the magnetoresistance shows a magnetic behavior induced by iron, which can be explained by taking into account a contribution of s-d hybridization. In particular, ferromagnetic-like hysteresis loops were observed up to 50 K for the iron filled multiwall carbon nanotubes. The magnetoresistance shows quantum interference phenomena such as universal conductance fluctuations and weak localization effects.
authors.affiliation: Division of Superconductivity and Magnetism, Institute for Experimental Physics II, University of Leipzig, Leipzig, Germany. j.barzola@physik.uni-leipzig.de
authors.forename: J
authors.initials: J
authors.lastname: Barzola-Quiquia
authors.forename: N
authors.initials: N
authors.lastname: Klingner
authors.forename: J
authors.initials: J
authors.lastname: Krüger
authors.forename: A
authors.initials: A
authors.lastname: Molle
authors.forename: P
authors.initials: P
authors.lastname: Esquinazi
authors.forename: A
authors.initials: A
authors.lastname: Leonhardt
authors.forename: M T
authors.initials: MT
authors.lastname: Martínez
mesh_terms: D004553:Electric Conductivity; D007501:Iron / Q000737:chemistry*; D060526:Magnetic Fields; D059346:Magnets / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D013696:Temperature
chemical_list: D037742:Nanotubes, Carbon; D007501:Iron