Physical and Chemical Properties of Rare Earth Oxides
作者： N. Imanaka
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摘要: The conductivities (σ) of the rare earth sesquioxides decrease with atomic number (Z) increase as tabulated in Table 5-1 [1] (Oxygen pressure (Po2): 0.2 atm) showing a p-type conduction. A break appears at 550-600 C (TB) relationship log σ vs. 1/T for most oxides. In contrast, activation energy an Z was observed simultaneously accompanying conductivity. considerable ionic conductivity oxides higher temperatures above inflection point mentioned. For example, transference (ti) is estimated to be 0.5 Gd2O3 1100 and Po2 10 -3 atm, value Dy2O3 6.3 x -5 atm. ti increases up 0.9 1200 Nd2O3, electronic contributions electrical were investigated from dependency upon oxygen pressure, it concluded that conduction mainly due vacancies.
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Sanghun Jeon, Hyunsang Hwang, Effect of hygroscopic nature on the electrical characteristics of lanthanide oxides (Pr2O3, Sm2O3, Gd2O3, and Dy2O3) Journal of Applied Physics. ,vol. 93, pp. 6393- 6395 ,(2003) , 10.1063/1.1569028
J. Kwo, M. Hong, A. R. Kortan, K. L. Queeney, Y. J. Chabal, R. L. Opila, D. A. Muller, S. N. G. Chu, B. J. Sapjeta, T. S. Lay, J. P. Mannaerts, T. Boone, H. W. Krautter, J. J. Krajewski, A. M. Sergnt, J. M. Rosamilia, Properties of high κ gate dielectrics Gd2O3 and Y2O3 for Si Journal of Applied Physics. ,vol. 89, pp. 3920- 3927 ,(2001) , 10.1063/1.1352688
G. V. Chandrashekhar, P. N. Mehrotra, G. V. Subba Rao, E. C. Subbarao, C. N. R. Rao, Semiconduction in non-stoichiometric rare earth oxides Transactions of the Faraday Society. ,vol. 63, pp. 1295- 1301 ,(1967) , 10.1039/TF9676301295
F. Millot, P.De Mierry, A new method for the study of chemical diffusion in oxides with application to cerium oxide CeO2−x Journal of Physics and Chemistry of Solids. ,vol. 46, pp. 797- 801 ,(1985) , 10.1016/0022-3697(85)90003-4
Tsuyoshi Arakawa, Akira Kabumoto, Jiro Shiokawa, Some electrical properties of praseodymium oxide films produced by oxidation of thin metal films Journal of The Less Common Metals. ,vol. 115, pp. 281- 286 ,(1986) , 10.1016/0022-5088(86)90150-5
L Laversenne, Y Guyot, C Goutaudier, M.Th Cohen-Adad, G Boulon, Optimization of spectroscopic properties of Yb3+-doped refractory sesquioxides: cubic and monoclinic Gd2O3 ☆ Optical Materials. ,vol. 16, pp. 475- 483 ,(2001) , 10.1016/S0925-3467(00)00095-1
N. Ch. Mitra, A. L. Bhattacharyya, Dielectric relaxations in Dy2O3 Physica Status Solidi (a). ,vol. 88, pp. 175- 179 ,(1985) , 10.1002/PSSA.2210880119
J. B. MacChesney, H. J. Williams, R. C. Sherwood, J. F. Potter, Preparation and Low‐Temperature Magnetic Properties of the Terbium Oxides Journal of Chemical Physics. ,vol. 44, pp. 596- 601 ,(1966) , 10.1063/1.1726730
R. Bazzi, M.A. Flores-Gonzalez, C. Louis, K. Lebbou, C. Dujardin, A. Brenier, W. Zhang, O. Tillement, E. Bernstein, P. Perriat, Synthesis and luminescent properties of sub-5-nm lanthanide oxides nanoparticles Journal of Luminescence. ,vol. 102, pp. 445- 450 ,(2003) , 10.1016/S0022-2313(02)00588-4
A. Goswami, R.Ramesh Varma, Dielectric behaviour of dysprosium oxide films Thin Solid Films. ,vol. 28, pp. 157- 165 ,(1975) , 10.1016/0040-6090(75)90106-6