title: Magneto-Coulomb effect in carbon nanotube quantum dots filled with magnetic nanoparticles.
abstract: Electrical transport measurements of carbon nanotubes filled with magnetic iron nanoparticles are reported. Low-temperature (40 mK) magnetoresistance measurements showed conductance hysteresis with sharp jumps at the switching fields of the nanoparticles. Depending on the gate voltage, positive or negative hysteresis was observed. The results are explained in terms of a magneto-Coulomb effect: The spin flip of the iron island at a nonzero magnetic field causes a shift of the chemical potential induced by the change of Zeeman energy; i.e., an effective charge variation is detected by the nanotube quantum dot.
authors: Institut Néel, CNRS and Université Joseph Fourier, BP 166, 25 Avenue des Martyrs, 38042 Grenoble Cedex 9, France.
authors: S
authors: S
authors: Datta
authors: L
authors: L
authors: Marty
authors: J P
authors: JP
authors: Cleuziou
authors: C
authors: C
authors: Tilmaciu
authors: B
authors: B
authors: Soula
authors: E
authors: E
authors: Flahaut
authors: W
authors: W
authors: Wernsdorfer