Correlation between high-pressure electrical properties of ZrO2 and its crystallite size

• Autorzy: Trefilova A. N. , Korionov I. V. , Babushkin A. N. , Łojkowski W. , Opalińska A.
• Konferencja: Sol-Gel Materials Research, Technology, Applications SGM'04, 6-11 june 2004
• Języki publikacji: EN

Abstrakty

EN

A relation between crystallite size and electrical properties of ZrO2 has been investigated by measurements of high-pressure electrical resistance. The resistance of nanocrystalline praseodymium-doped zirconia powders has been measured in the pressure and temperature ranges between 15 and 50 GPa, and 77 and 400 K, respectively. Around 30-37 GPa the resistances of all samples decrease by 3-4 orders of magnitude. Therefore, the anomalies in the pressure dependence of the resistance and of parameters depending on the concentration, mobility and activation energy of the charge carriers were found at ca. 40-45 GPa. The activation energy of the charge carriers depends on the crystallite size.

Słowa kluczowe

EN

zirconium dioxide; electrical properties; pressure-induced phase transition; nanocrystalline sample

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 1
• Strony: 247--252
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Trefilova A. N.

• Department of Physics, Ural State University, Lenina 51, Ekaterinburg, Russia

autor

Korionov I. V.

• Department of Physics, Ural State University, Lenina 51, Ekaterinburg, Russia

autor

Babushkin A. N.

• Department of Physics, Ural State University, Lenina 51, Ekaterinburg, Russia

autor

Łojkowski W.

• High Pressure Research Center, Polish Academy of Science, Warsaw, Poland

autor

Opalińska A.

• High Pressure Research Center, Polish Academy of Science, Warsaw, Poland

Bibliografia

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• [4] KORIONOV I.V., TREFILOVA A.N., BABUSHKIN A.N, ŁOJKOWSKI W., OPALIŃSKA A., Mater. Sci.-Poland 22 (2004), 241.
• [5] VERECHAGIN L.F., YAKOVLEV E.N., STEPANOV T.N., BIBAEV K.H., VINOGRADOV B.V., Zh. Exp. Theor. Phys. Lett., 16 (1972), 240.
• [6] BABUSHKIN A.N., High Pressure Res., 6 (1992), 349.
• [7] BABUSHKIN A.N., KANDRINA Y.A., KOBELEVA O.L., SCHKERIN S.N., VOLKOVA Y.Y., [in:] Frontiers of High Pressure Research II: Application of High Presure to Low-Dimensional Novel Electronic Materials, H.D. Hochheimer, B. Kuchta, P.K. Dorhout, J.L. Yarger. (Eds.), Kluwer, Dordrecht, 2001, p. 131.
• [8] BONDIOLI F., FERRARI A.M., BRACCINI S., LEONELLI C., PELLACANI G.C., OPALINSKA A., CHUDOBA T., GRZANKA E., PALOSZ B., LOJKOWSKI W., Solid State Phenomena, 94 (2003), 193.