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Pis'ma v Zh. Èksper. Teoret. Fiz., 2002, Volume 76, Issue 3, Pages 223–1 (Mi jetpl2890)  

This article is cited in 1 scientific paper (total in 1 paper)

CONDENSED MATTER

Electronic properties of new Ca(Al$_x$Si$_{1-x})_2$ and Sr(Ga$_x$Si$_{1-x})_2$ superconductors in crystalline and nanotubular states

I. R. Shein, V. V. Ivanovskaya, N. I. Medvedeva, A. L. Ivanovskii

Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: The band structure of new layered (AlB$_2$ type) Ca(Al$_x$Si$_{1-x})_2$ and Sr(Ga$_x$Si$_{1-x})_2$ superconductors is studied by the first-principle full-potential LMTO method. It has been shown that the superconducting properties of ternary silicides are due to the high density of (Ca,Sr)d states at the Fermi level, whereas the growth of $T_C$ in going from Sr(Ga$_x$Si$_{1-x})_2$ to Ca(Al$_x$Si$_{1-x})_2$ is associated with the increase in phonon frequencies due to the decrease in atomic masses. Simulations are performed for the electronic properties of hypothetical $(11,11)$ and $(20,0)$ CaAlSi and SrGaSi nanotubes. In going from the crystalline to the nanotubular state, the silicide systems retain metal-like properties. The template and «film rolling» techniques can be used for obtaining silicide nanotubes.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2002, 76:3, 189–193

Document Type: Article
PACS: 71.20.Cf, 71.45.Nt, 71.90.+q
Received: 26.06.2002
Revised: 08.07.2002

Citation: I. R. Shein, V. V. Ivanovskaya, N. I. Medvedeva, A. L. Ivanovskii, “Electronic properties of new Ca(Al$_x$Si$_{1-x})_2$ and Sr(Ga$_x$Si$_{1-x})_2$ superconductors in crystalline and nanotubular states”, Pis'ma v Zh. Èksper. Teoret. Fiz., 76:3 (2002), 223–1; JETP Letters, 76:3 (2002), 189–193

Citation in format AMSBIB
\Bibitem{SheIvaMed02}
\by I.~R.~Shein, V.~V.~Ivanovskaya, N.~I.~Medvedeva, A.~L.~Ivanovskii
\paper Electronic properties of new Ca(Al$_x$Si$_{1-x})_2$ and Sr(Ga$_x$Si$_{1-x})_2$ superconductors in crystalline and nanotubular states
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2002
\vol 76
\issue 3
\pages 223--1
\mathnet{http://mi.mathnet.ru/jetpl2890}
\transl
\jour JETP Letters
\yr 2002
\vol 76
\issue 3
\pages 189--193
\crossref{https://doi.org/10.1134/1.1514766}
\scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-0037495432}


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    This publication is cited in the following articles:
    1. Lu Ya., Tada T., Toda Y., Ueda Sh., Wu J., Li J., Horiba K., Kumigashira H., Zhang Ya., Hosono H., Phys. Rev. B, 95:12 (2017), 125117  crossref  isi  scopus
  •       Pis'ma v Zhurnal ksperimental'noi i Teoreticheskoi Fiziki
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