Enhanced reactivity of domain walls in with sodium
Enhanced reactivity of domain walls in with sodium
复制标题
增强磁畴壁与钠的反应性
DOI：
10.1007/pl00011037
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
E. Salje
中科院分区：
文献类型：
--
作者：
A. Aird;E. Salje
翻译后摘要：一个可能的新的高温超导相最近报道在WO 3：Na。我们研究了钠蒸气和WO3之间的反应，并将反应形成的相与先前已知的WO3相进行了比较。通过使用光学显微镜和电子探针分析，从内部的晶体畴壁显示出具有比散装材料与钠蒸气反应后，钠含量高得多。这表明优先传输沿着域壁。结果非常类似于WO 3晶体的还原反应，其中孪晶壁优先失去氧。缺氧双壁超导体。
Abstract:A possible new high temperature superconducting phase was recently reported in WO3:Na. We have examined the reaction between sodium vapour and WO3, and compared the phases formed by the reaction to previously known WO3 phases. 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 of WO3 crystals in which twin walls lose oxygen preferentially. Oxygen deficient twin walls are superconducting with .