An Attempt to Image Chemical Ordering in Close-Packed Layer of Mg-Zn-Y 18R Long-Period Stacking-Ordered Structure by Scanning Tunneling Microscopy

作者：Kurokawa Shu^*; Yamaguchi Akihiro; Sakai Akira

来源：Materials Transactions, 2013, 54(7): 1073-1076.

DOI：10.2320/matertrans.M2013123

• long-period stacking-ordered structures
• magnesium
• scanning tunneling microscopy
• in-plane ordering
• 18R

For the first time, nanostructures of 18R (Mg85Zn6Y9) LPSO (long-period stacking-ordered) were examined using STM (scanning tunneling microscopy), which unambiguously confirmed the proposed model of the atomic structure of the LPSO phase in which the Zn Y clusters are arranged in a two-dimensional hexagonal lattice in the (0001)h, plane. The typical domain size of this hexagonal arrangement was estimated to range from several nanometers to a few tens of nanometers. In addition, the structures at the domain boundaries of the hexagonal arrangement were imaged and clarified by STM.

• 出版日期2013-7