Enhanced reactivity of domain walls in
Enhanced reactivity of domain walls in
复制标题
增强域壁的反应性
DOI：
10.1007/s100510051117
复制
发表时间：
2000
影响因子：
1.6
通讯作者：
E. Salje
中科院分区：
文献类型：
--
作者：
A. Aird;E. Salje
A possible new high temperature superconducting phase was recently reported inWO3:Na. We have examined the reaction between sodium vapour andWO3, and compared the phases formed by the reaction to previously knownWO3phases. By using light microscopy and electron microprobe analysis, domain walls from the interior of the crystal are shown to have a much higher Na content than bulk material after reaction with Na vapour. This indicates preferential transport along the domain walls. The result is very similar to a reduction reaction ofWO3crystals in which twin walls lose oxygen preferentially. Oxygen deficient twin walls are superconducting with \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}\end{document}.
A possible new high temperature superconducting phase was recently reported inWO3:Na. We have examined the reaction between sodium vapour andWO3, and compared the phases formed by the reaction to previously knownWO3phases. By using light microscopy and electron microprobe analysis, domain walls from the interior of the crystal are shown to have a much higher Na content than bulk material after reaction with Na vapour. This indicates preferential transport along the domain walls. The result is very similar to a reduction reaction ofWO3crystals in which twin walls lose oxygen preferentially. Oxygen deficient twin walls are superconducting with \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}\end{document}.