Abstract
The electrical conductivity of V1 – x Nb x O2 single crystals have been investigated over a wide temperature range covering regions of the existence of the metallic and insulating phases. It has been shown that, with an increase in the niobium concentration, the electrical conductivity of the metallic phase becomes below the Mott limit for the minimum metallic conductivity. Immediately after the metal–insulator transition, the electrical conductivity is determined by a large amount of free electrons that gradually localized with a decrease in the temperature. The temperature dependence of the electrical conductivity in the insulating phase of V1 – x Nb x O2 has been explained in the framework of the hopping conductivity model that takes into account the effect of thermal vibrations of atoms on the resonance integral.
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References
V. N. Andreev and V. A. Klimov, Phys. Solid State 49 (12), 2251 (2007).
A. Zilbersztejn and N. F. Mott, Phys. Rev. B: Solid State 11, 4383 (1975).
J. H. Park, J. M. Coy, T. S. Kasirga, C. Huang, Z. Fei, S. Hunter, and D. H. Gobden, Nature (London) 500, 431 (2013).
M. Marezio, D. B. McWhan, J. P. Remeika, and P. D. Dernier, Phys. Rev. B: Solid State 7, 2541 (1972).
G. Villeneuve, A. Bordet, A. Casalot, J. P. Pouget, H. Launois, and P. Lederer, J. Phys. Chem. Solids 33, 1953 (1972).
M. Ritschel, N. Mattern, W. Bruckner, H. Oppermann, G. Strover, W. Moldenhauer, J. Henre, and E. Wolf, Krist. Tech. 12, 1221 (1977).
J. Wu, Q. Gu, B. S. Guiton, N. P. de Leon, L. Ouyang, and H. Park, Nano Lett. 6, 2313 (2006).
A. Tselev, I. A. Luk’yanchuk, I. N. Ivanov, J. D. Budai, J. Z. Tischler, E. Strelkov, K. Jones, A. Kolmakov, and S. V. Kalinin, Nano Lett. 10, 4409 (2010).
E. Strelkov, A. Tselev, I. Ivanov, J. D. Budai, J. Zhang, J. Z. Tischler, I. Kravchenko, S. V. Kalinin, and A. Kolmakov, Nano Lett. 12, 6198 (2012).
T. J. Hanlon, J. A. Coath, and M. A. Richardson, Thin Solid Films 436, 269 (2003).
C. Marini, E. Arcangeletti, D. Di Castro, L. Baldassare, A. Perucchi, S. Lupi, L. Malavasi, L. Boeri, E. Pomjakushina, K. Conder, and P. Postorino, Phys. Rev. B: Condens. Matter 77, 235111 (2008).
V. N. Andreev, V. A. Klimov, M. E. Kompan, and B. A. Melekh, Phys. Solid State 56 (9), 1857 (2014).
P. Lederer, H. Launois, J.P. Pouget, A. Casalot, and G. Villeneuve, J. Phys. Chem. Solids 33, 1969 (1972).
J. C. Launay, G. Villeneuve, and M. Pouchard, Mater. Res. Bull. 8, 997 (1973).
V. N. Andreev, V. A. Pikulin, and D. I. Frolov, Phys. Solid State 42 (2), 330 (2000).
N. F. Mott, Metall–Insulator Transitions (Tailor and Francis, London, 1974).
V. V. Bryksin, Sov. Phys. JETP 73 (5), 861 (1991).
V. N. Andreev and V. A. Klimov, Phys. Solid State 51 (11), 2235 (2009).
V. N. Andreev and V. A. Klimov, Phys. Solid State 53 (12), 2424 (2011).
V. N. Andreev and V. A. Klimov, Phys. Solid State 55 (9), 1829 (2013).
J. P. Pouget, P. Lederer, D. S. Schreiber, H. Launois, D. Wohlleben, A. Casalot, and G. Villeneuve, J. Phys. Chem. Solids 33, 1961 (1972).
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Original Russian Text © V.N. Andreev, V.A. Klimov, 2016, published in Fizika Tverdogo Tela, 2016, Vol. 58, No. 3, pp. 590–594.
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Andreev, V.N., Klimov, V.A. Specific features of electrical conductivity of the insulating phase of vanadium dioxide doped with niobium. Phys. Solid State 58, 606–610 (2016). https://doi.org/10.1134/S1063783416030021
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DOI: https://doi.org/10.1134/S1063783416030021