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  • 1
    Electronic Resource
    Electronic Resource
    Ballistic electronic transport in quantum cables (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 88 (2000), S. 2617-2622 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We studied theoretically ballistic electronic transport in a proposed mesoscopic structure—quantum cable. Our results demonstrated that quantum cable is a unique structure for the study of mesoscopic transport. With the increasing Fermi energy of electrons, the ballistic conductance of quantum cable increases in a series of steps with different height. Besides the steps of one and two quantum conductance units (2e2/h), conductance steps of three and four quantum conductance units can be also expected due to the accidental degeneracies (crossings) of the transverse subbands of quantum cable. As one of the cable structure parameters is varied, the width of conductance plateaus varies in the nonmonotonous way, which arises from the nonmonotonic variation of the separation between the adjoining transverse subbands. In the weak coupling limit, the first two conductance plateaus are both of just one quantum conductance unit 2e2/h for the quantum cable structure of two cylindrical wires with similar thicknesses. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1288227
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Quantum cables as transport spectroscope for quasi-one-dimensional density of states of cylindrical quantum wires (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 2015-2017 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We propose that quantum cables can be used as a kind of transport spectroscope to obtain directly the quasi-one-dimensional (Q1D) density of states (DOS) of cylindrical quantum wires. By simultaneously measuring the direct current through the cylindrical quantum wire and the leaky tunneling current into its neighboring wire at desirable temperatures, one can obtain detailed information about the Q1D DOS and subband structure of the cylindrical quantum wire. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1313247
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  • 3
    Electronic Resource
    Electronic Resource
    Oxygen reduction on poly(4-vinylpyridine)-modified ordinary pyrolytic graphite electrodes with adsorbed cobalt tetra-sulphonated phthalocyanine in acid solutions (1991)
    Springer
    Journal of applied electrochemistry 21 (1991), S. 973-981 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Poly(4-vinylpyridine) (PVP) has been used to modify ordinary pyrolytic graphite (OPG) electrodes with adsorbed cobalt tetra-sulphonated phthalocyanine (CoTsPc) in acid solutions. These modified electrodes were prepared in different manners and characterized by cyclic voltammetry. Their electrocatalytic activity for oxygen reduction and stability in 0.05M H2SO4 solutions was examined at room temperature. The OPG/CoTsPc/PVP modified electrodes were found to be more active for oxygen reduction in 0.05M H2SO4 solutions as compared to the electrode with adsorbed CoTsPc on OPG without PVP. The increase in activity is due to the formation of an adduct between PVP and CoTsPc. U.v.-visible and FTIR studies provide evidence for such adduct formation. Over a 10 h period the activity of the OPG/CoTsPc/PVP system was essentially constant while that of OPG/CoTsPc without polymer decreased by a substantial amount (about 37%). The PVP layer inhibits the diffusion of the CoTsPc and/or Co out of the complex into the solution phase. The stability of the OPG/CoTsPc/PVP system may also be due to low solubility of the adduct between PVP and CoTsPc in a 0.05M H2SO4 solution. Thicker films of PVP decreased the diffusion limiting oxygen reduction current. The effect of pH of the electrolyte solution on the activity of such PVP-modified electrodes for oxygen reduction has also been investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01077582
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  • 4
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    Experimental study of the spectroscopic factors of $^{90–97}\mathrm{Zr}$ (2018)
    American Physical Society (APS)
    Details
    Publication Date: 2018-06-23
    Description: Author(s): L. Gan, H. B. Sun, Z. H. Li, Y. J. Li, J. Su, B. Guo, S. Q. Yan, Y. B. Wang, S. Zeng, Z. Y. Han, X. Y. Li, D. H. Li, T. L. Ma, Y. P. Shen, Y. Su, E. T. Li, S. P. Hu, and W. P. Liu Several zirconium isotopes are in the path of slow neutron capture (s) process, and the direct components of ( n , γ ) reactions can be derived from their neutron spectroscopic factors. In the present work, the angular distributions of ( C 12 , C 13 ) and ( C 13 , C 12 ) reactions on targets Zr 90 , 92 , 94 , 96 were obta... [Phys. Rev. C 97, 064614] Published Fri Jun 22, 2018
    Keywords: Nuclear Reactions
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
    Published by American Physical Society (APS)
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