electron correlation in new materials and nanosystems, 2007, p.429

[...]... the inhomogeneities originate from microstructural perturbations such as asperities at the interfaces with the contacting electrodes, or whether they are an inherent electronic property of MO interfaces SAM and LB films are not rigid, and despite the implementation of precautionary 9 K Scharnberg and S Kruchinin (eds.), Electron Correlation in New Materials and Nanosystems, 9–21 c 2007 Springer N CHANDRASEKHAR... superconducting state in bundles of single-walled carbon nanotubes with diameters of 10 Å at temperatures below T c ≈ 1 K (Kociak et al., 2001) as well as the onset of superconductivity at 23 K Scharnberg and S Kruchinin (eds.), Electron Correlation in New Materials and Nanosystems, 23–35 c 2007 Springer 24 A I ROMANENKO ET AL T c ≈ 16 K in nanotubes with diameters of 4 Å (Tang et al., 2003) and at T... uncertain whether the integrity of the organic is maintained after deposition of the metal film [10] For instance, in metal-inorganic semiconductor (MIS) interfaces, unless the semiconductor surface is prepared with care and the metal is chosen so that it is lattice matched, the metal film is polycrystalline, causing significant variations in the electronic transparency of the interface [11,12] In this... Electron Correlation in New Materials and Nanosystems, 3–8 c 2007 Springer 4 A FUJIWARA ET AL the electronic structure of crystalline C60 is hardly modified from that of a free C60 molecule, namely, a molecular orbital, because crystalline C60 is a nearly ideal molecular crystal with van der Waals interaction The quantized electronic levels are conserved even when C60 is in a cluster or a crystalline state... is shown in Fig 6(b) Consistent with the observations of Muelenkamp et al [22], we observe significant tailing of electronic states into the gap In addition, we also find that the HOMO as determined by the LDOS does not peak at the transmission This is acceptable, since the HOMO and LUMO values used in this work are also determined by cyclic voltammetry, and therefore could be inaccurate, as in the case... Science of Ukraine and the Ministry of Ukraine for Education and Science for support Kurt Scharnberg and Sergei Kruchinin August 2006 PART I Quantum Nanodevices TRANSPORT PROPERTIES OF FULLERENE NANODEVICES Toward the New Research Field of Organic Electronic Devices Akihiko Fujiwara*, Yukitaka Matsuoka, Nobuhito Inami, Eiji Shikoh School of Materials Science, Japan Advanced Institute of Science and Technology,... present in the crystal structure of nanocrystallites As a result, in such structures the electron- electron interaction should be modified This paper is devoted to the analysis of experimental data which allows to determine the electron- electron interaction constant λc in carbon nanostructures formed by curved graphene layers 2 Experimental methods The method of our investigation of the electron- electron interaction... Matsuoka, N Inami, E Shikoh, A Fujiwara, Transport properties of C60 thin film FETs with a channel of several-hundred nanometers, Sci Technol Adv Mater 6, 427430 (2005) 11 Y Matsuoka, N Inami, E Shikoh, A Fujiwara, unpublished NANOSCALE STUDIES ON METAL-ORGANIC INTERFACES N Chandrasekhar (n-chandra@imre.a-star.edu.sg) Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602... (c-MWNTs) and pyrolytic carbon were used for investigation We found that λc = 0.2 for arc-MWNTs (before and after bromination treatment); λc = 0.1 for pyrolytic graphite; λc > 0 for c-MWNTs We conclude that the curvature of graphene layers in carbon nanostructures leads to the increase of the electron- electron interaction constant λc Key words: Electron- electron interaction; Nanostructures; Electronic... are determined by the value and the sign of the electron- electron interaction constant λc and are proportional to the diamagnetic susceptibility of electrons χor In graphite and MWNTs the diamagnetic susceptibility is greater than in any other diamagnetic material (excluding the superconductors), and the exp correction to χor should also be large ∆χ(T )or = χ(T )or − χ(T )or was found by (Lee and Ramakrishnan, . unipolar features in conductivity of point contacts between A. Bianconi, M. Filippi, M. Fratini, E. Liarokapis, V. Palmisano, Shape resonances in the interband pairing in nanoscale normal and. microscopy (BEEM) studies on two metal organic interfaces, Ag-polyparaphenylene (PPP) and Ag- Poly-1-methoxy-4-(2- ethylhexyloxy) -p- phenylenevinylene (MEHPPV), and a metal-molecule interface. Interfaces, Electronic transport, Manoscience K. Scharnberg and S. Kruchinin (eds.), Electron Correlation in New Materials and Nanosystems, c  2007 Springer. 9 whether they are an inherent electronic