Synthesis and characterization of new pyrochlore solid solution Bi1.5Sb1.5Cu1−xMnxO7
作者： Mayouf Sellami , Vincent Caignaert , Meriem Hamdad , Ahmed Bekka , Noureddine Bettahar
DOI: 10.1016/J.JALLCOM.2009.04.017
关键词:
摘要: Abstract A new pyrochlore solid solution with formula Bi 1.5 Sb Cu 1− x Mn O 7 has been synthesized using ceramic method at 1000 °C. The cell parameter decreases linearly increasing manganese concentration. Rietveld refinements for (B 0.5 )(Sb )O compound X-ray powder diffraction data confirmed an overall 2 B cubic structure a = 10.42749 (4) A and Fd -3 m symmetry. reliability factors are R wp = 3.48%; p = 2.37%; exp = 1.65% Bragg = 1.58%. magnetic susceptibility measurements achieved between 4 300 K indicate paramagnetic behaviour oxidation state “2+” of the ion. electric resistance measured complex impedance spectroscopy put in evidence decrease temperature, which reached 5 × 10 Ω 675 K. Dielectric properties depend on variation frequency results conductive compound.
elsevier.com
sci-hub.se 参考文章(36)
Gerald Jeanne, Gilbert Desgardin, Gerard Allais, Bernard Raveau, Etude des propriétés ferroélectriques de quelques oxydes ternaires de type pyrochlore Journal of Solid State Chemistry. ,vol. 15, pp. 193- 202 ,(1975) , 10.1016/0022-4596(75)90246-7
Steffen Pfeiffer, Martin Jansen, Wilhelm Klein, Hans-Jörg Deiseroth, Jens Schlirfand Christof Reiner, Sylvia Golbs, Raul Cardoso-Gil, Marcus Schmidt, Harald Euler, Bruno Barbier, Alke Meents, Qiao-Chu Zhang, Xi-Yuan Yan, Mu-Wang Chen, Yinzhuang Zhou, Jing Xing, Lingmei Xiao, Jinli Liu, Chun-Yan Ao, Chong-Bo Liu, Liu-Shui Yan, Qiu-Yue Lin, Xin-Qian He, Yi-Han Wen, Chang-Lun Shao, Mei-Yan Wei, Xiu-Li Zhang, Zhen Liu, Chang-Yun Wang, Hui-Duo Xian, Hua-Qiong Li, Jian-Feng Liu, Guo-Liang Zhao, Kai Shi, Hong-Jun Bai, Zeng-Lin Wang, Xun Feng, Xin-Ge Shi, Fang Ruan, Hui Zhang, Fang-Fang Jian, Yu-Hua Feng, Yu-Xiang Gao, Wen-Lin Xie, Chuang-Ping Xiao, Xue-Feng Li, Ming-Hua Qiu, Hui-Ming Huang, IMO Shi-Yuan, Fang Xiong, Bin-Hai Kuang, Shao-Hua Li, Cheng-Mei Liu, Guo-Gang Tu, Shuai Yuan, Wen-Ying Zhang, Kun-Xian Shu, Yi-Long Liang, Guang-Fan Yan, Jian-Ying Zhao, Guo-Dong Tang, Rong-Qing Li, Zai-Chao Zhang, Inorganic Crystal Structures ,(1989)
A. P. Ramirez, A. Hayashi, R. J. Cava, R. Siddharthan, B. S. Shastry, Zero-point entropy in ‘spin ice’ Nature. ,vol. 399, pp. 333- 335 ,(1999) , 10.1038/20619
Juan C Nino, Michael T Lanagan, Clive A Randall, None, Dielectric relaxation in Bi2O3–ZnO–Nb2O5 cubic pyrochlore Journal of Applied Physics. ,vol. 89, pp. 4512- 4516 ,(2001) , 10.1063/1.1357468
M. Avdeev, M.K. Haas, J.D. Jorgensen, R.J. Cava, Static disorder from lone-pair electrons in Bi2−xMxRu2O7−y (M=Cu,Co; x=0,0.4) pyrochlores Journal of Solid State Chemistry. ,vol. 169, pp. 24- 34 ,(2002) , 10.1016/S0022-4596(02)00007-5
Rodney C. Ewing, William J. Weber, Jie Lian, Nuclear waste disposal—pyrochlore (A2B2O7): Nuclear waste form for the immobilization of plutonium and “minor” actinides Journal of Applied Physics. ,vol. 95, pp. 5949- 5971 ,(2004) , 10.1063/1.1707213
Shigeki Yonezawa, Yuji Muraoka, Yoshitaka Matsushita, Zenji Hiroi, New Pyrochlore Oxide Superconductor RbOs2O6 Journal of the Physical Society of Japan. ,vol. 73, pp. 819- 821 ,(2004) , 10.1143/JPSJ.73.819
Licia Minervini, Robin W. Grimes, Kurt E. Sickafus, Disorder in Pyrochlore Oxides Journal of the American Ceramic Society. ,vol. 83, pp. 1873- 1878 ,(2004) , 10.1111/J.1151-2916.2000.TB01484.X
Harry Nyman, Sten Andersson, B.G. Hyde, M. O'Keeffe, The pyrochlore structure and its relatives Journal of Solid State Chemistry. ,vol. 26, pp. 123- 131 ,(1978) , 10.1016/0022-4596(78)90142-1
Bernhardt J Wuensch, Kevin W Eberman, Catherine Heremans, Esther M Ku, Per Onnerud, Evangeline ME Yeo, Sossina M Haile, Judith K Stalick, James D Jorgensen, Connection between oxygen-ion conductivity of pyrochlore fuel-cell materials and structural change with composition and temperature Solid State Ionics. ,vol. 129, pp. 111- 133 ,(2000) , 10.1016/S0167-2738(99)00320-3