Moreover , the 2D all proportional solid solution alloy of Pb and Bi has been synthesized in 2011 .
The 2D ordered alloy of Pb and Sn has been synthesized and characterized with scanning tunneling microscopy and low - energy electron diffraction in 2003 .
The 2D all proportional solid solution alloy of Pb and Bi has been synthesized in 2011 .
The 2D ordered alloy of Pb and Sn has been synthesized and characterized with scanning tunneling microscopy and low - energy electron diffraction in 2003 .