Direct observation of 'domain like' atomic arrangement of incommensurate 2d Au3+Zn by high-voltage-high-resolution electron microscopy

Abstract

A domain-like atomic arrangement is observed in the incommensurate 2d Au₃₊Zn with two-dimensional antiphase structure of Cu₃Pd-type by high-resolution structure imaging method using 1000 kV electron microscope. Two types of domains with different structures occur by turns along (100) and (001). Inside the domains atomic arrangements are commensurate and antiphase periods are 6a and 5c, and the relative configuration of the domains produces incommensurate character.