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Modern Approaches in Point-Contact Spectroscopy and Their Application to Probe Nanoclusters in Mesoscopic Materials

  • Conference paper
Spectroscopy of Emerging Materials

Part of the book series: NATO Science Series II: Mathematics, Physics and Chemistry ((NAII,volume 165))

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Abstract

Modern approaches in point-contact spectroscopy were used for the identification of nanoclusters in mesoscopic materials. The conductive properties of a new layered mesoscopic superconductor SnNb5Se9 were studied. The investigation has been carried out with Ag(Cu)/SnNb5Se9 heterocontacts. Temperature dependence of heterocontact current-voltage characteristic derivatives gave the opportunity to study the superconducting behavior of the samples. Nanoclusters of the initial substances NbSe2 and Nb3Sn have been revealed. Their volume concentration is less than 10−7 in the host matrix. The value of the superconducting energy gap for SnNb5Se9 and its temperature dependence have been determined.

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Author information

Authors and Affiliations

  1. B.Verkin Institute for Low Temperature Physics & Engineering of NAS of Ukraine, 47 Lenin Ave., Kharkov, 61103, Ukraine

    Gennadiy V. Kamarchuk, Pavel N. Chubov & Vasiliy A. Gudimenko

  2. Institut des Matériaux Jean Rouxel, 2 rue de la Houssinière, BP 32229, F-44322, Nantes, France

    Philippe Molinie, Annie Leblanc-Soreau & Eric C. Faulques

Authors
  1. Gennadiy V. Kamarchuk
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  2. Pavel N. Chubov
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  3. Vasiliy A. Gudimenko
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  4. Philippe Molinie
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  5. Annie Leblanc-Soreau
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  6. Eric C. Faulques
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Editor information

Editors and Affiliations

  1. Institut des Matériaux Jean Rouxel, Nantes, France

    Eric C. Faulques

  2. Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, USA

    Dale L. Perry

  3. Verkin Institute for Low Temperature Physics & Engineering, Kharkov, Ukraine

    Andrei V. Yeremenko

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© 2004 Kluwer Academic Publishers

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Kamarchuk, G.V., Chubov, P.N., Gudimenko, V.A., Molinie, P., Leblanc-Soreau, A., Faulques, E.C. (2004). Modern Approaches in Point-Contact Spectroscopy and Their Application to Probe Nanoclusters in Mesoscopic Materials. In: Faulques, E.C., Perry, D.L., Yeremenko, A.V. (eds) Spectroscopy of Emerging Materials. NATO Science Series II: Mathematics, Physics and Chemistry, vol 165. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2396-0_25

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