Exploring the subsurface atomic structure of the epitaxially grown phase change material Ge${}_2$Sb${}_2$Te${}_5$

J. Kellner, G. Bihlmayer, V. L. Deringer +7

Scanning tunneling microscopy (STM) and spectroscopy (STS) in combination with density functional theory (DFT) calculations are employed to study the surface and subsurface propert…