Rotate straight up until the two blue atoms are aligned north and south. These are the only two atoms remaining from the original layer (A). Continue rotating and you will see that you have only the ...

New discovery in high-temperature superconductors: Sub-unit-cell scale pair density modulation. Beijing Zhongke Journal Publising Co. Ltd. Journal Chinese Physics Letters DOI 10.1088/0256-307X/42 ...

This single layer is the precursor of the simple cubic (SC) unit cell. The lattice points are touching one another but not in the most efficient way. In other words, we are creating a lot of empty ...