ВОЛЬТ-АМПЕРНАЯ ХАРАКТЕРИСТИКА ТУННЕЛЬНОГО КОНТАКТА НАНОТРУБКА - МЕТАЛЛ

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  • 538.915 22.314

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    - , yana_nn@inbox.ru , 100, 400062 . ,

    - , pak.anastasia@gmail.com , 100, 400062 . ,

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    ISSN 2222-8896. . . . -. . 1, . . 2013. 1 (18)

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    93

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    ISSN 2222-8896. . . . -. . 1, . . 2013. 1 (18) 95

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    1 ( 12-02-31654).

    1. , .. (, , - ) / .. . . : , 1975. 632 c.

    2. , .. / .. , .. , .. // . 2009. . 51, 8. C. 16571662.

    3. , .. . . II. / .. , .. -. . : , 1988. 512 c.

    4. , .. . . / .. , .. . . :, 2000. 360 c.

    REFERENCES

    1. Bakhvalov N.S. Chislnny mtody (analiz, algbra, obyknovnny diffrntsialnyuravnniya) [Numerical methods (analysis, algebra, ordinary differential equations)]. Moscow,Nauka Publ., 1975. 632 p.

    2. Blonnko M.B., Glazov S.Yu., Lbdv N.G. Dvumrny nlinyny elktromagnitnyvolny v massiv uglrodnykh nanotrubok [Dimensional nonlinear electromagnetic waves in anarray of carbon nanotubes]. Fizika tvrdogo tla [Physics of Solids], 2009, vol. 51, no. 8,pp. 16571662.

    3. Landau L.D., Lifshits E.M. Tortichskaya fizika. T. II. Toriya polya [Theoreticalphysics. Vol. II. Field Theory]. Moscow, Nauka Publ., 1988. 512 p.

    4. Lvitov L.S., Shitov A.V. Zadachi po tortichskoy fizik s rshniyami imtodichskimi ukazaniyami. Funktsii Grina. Diagrammnaya tkhnika [Problems intheoretical physics with decisions and guidelines. Greens functions. Diagram technique].Moscow, NN Publ., 2000. 360 p.

    ISSN 2222-8896. . . . -. . 1, . . 2013. 1 (18) 97

  • CURRENT-VOLTAGE CHARACTERISTIC OF TUNNELING CONTACTCARBON NANOTUBE METALL

    Konobva Natalya NikolavnaCandidate of Physical and Mathematical Sciences,Associate Professor, Department of Information Systems and Computer SimulationsVolgograd State Universityyana_nn@inbox.ruProspekt Universitetskij, 100, 400062 Volgograd, Russian Federation

    Pak Anastasiya Valrvna

    Candidate of Physical and Mathematical Sciences,Associate Professor, Department of Information Systems and Computer SimulationsVolgograd State Universitypak.anastasia@gmail.comProspekt Universitetskij, 100, 400062 Volgograd, Russian Federation

    Abstract. Physical characteristics, such as heat, conductivity and others,in principle, one can always express by the Greens function. However, therelationship is often very complex and one-sided because it does not allowto recover the Greens function from experimental data. It is therefore of interestto discuss methods to directly measure of the Green function and obtaininformation about the properties of interacting particles system, which can beeasily interpreted theoretically. In this paper we investigate the transfer ofelectrons from the carbon nanotube (CNT) (which we shall call the probe)to metal (the sample). If the charge transfer is instantaneous, it can be describedas the destruction of the electron in the probe and the birth of his in the sample.The probability of this process is related to the Green functions of the sampleand the probe. If the properties of the probe are known and fairly simple, it canbe assumed that in such an experiment to measure the Greens function of anelectron in a sample.As a result, the expression for the tunneling current wasobtained. And the current-voltage characteristic of the tunneling contact zig-zagcarbon nanotube-metall was plotted. This dependence shows when the diameterof the carbon nanotubes increases, the tunneling current increases. However, thedependence for different type of CNT remains the same. Also ohmic portion ofthe current-voltage characteristic was observed. Therefore, by varying the tubediameter we can control value of the tunneling current contact.

    Key words: carbon nanotubes, tunnel contact, Greens function, current-voltage characteristic, potential barrier.

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