...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The European physical journal, B. Condensed matter physics >Cubic superspace symmetry and inflation rules in metastable MgAl alloy
【24h】

Cubic superspace symmetry and inflation rules in metastable MgAl alloy

机译：亚稳MgAl合金的立方超空间对称性和膨胀规律。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The diffraction properties of a quenched Al-Mg alloy which has been recently termed as a "cubic quasicrystal" are quantitatively reanalyzed. It is shown that the phase can be interpreted within the superspace formalism as an ordinary incommensurately modulated structure. The cubic six-dimensional superspace group that describes its symmetry properties has been determined. The additional inflation symmetry features exhibited by the diffraction diagram can be summed up by its invariance for the inflation factor (2 + 3~(1/2)), but this property has its origin in the specific value of the modulus of the modulation wave vectors, which is composition dependent. Other particular values of this modulus can give rise to similar scaling properties. Further experiments are required to ellucidate if the mentioned inflation symmetry is a fortuitous situation in a composition dependent wave vector, or has indeed the physical significance which would allow to describe the system as a "cubic quasicrystal".
机译：定量地重新分析了最近被称为“立方准晶体”的淬火Al-Mg合金的衍射特性。结果表明，该相位可以在超空间形式主义中解释为普通的不相称的调制结构。确定了描述其对称特性的立方六维超空间组。衍射图显示的其他膨胀对称性特征可以通过其对膨胀因子（2 + 3〜（1/2））的不变性来概括，但这种性质起源于调制波模量的特定值向量，取决于成分。该模量的其他特定值可以产生相似的缩放特性。需要进一步的实验来阐明所提到的膨胀对称性是成分相关波矢量中的偶然情况，还是确实具有可以将系统描述为“立方准晶体”的物理意义。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号