Transformation of Te-FeGe-Te single layer in a Janus one, S-FeGe-Te, by substitution of Te by S under H2S, and synthesis of FeS on Au(111) u

We will make us of grazing incidence X-ray diffraction/surface diffraction to investigate teh structure of a Janus single layer of S-FeGe-Te obtained by substitution of the top Te layer of a FGT single layer growqn on a Ge(111) substrate. (3 days.) In the second part, we will study the structure of a single layer of FeS during its growth on a Au(111) substrate.