Uni Hamburg Fachbereich Physik
Logo STM/SPSTM, SPM-Group, Institute of Applied Physics, Hamburg

GdFe2 islands

Image size: 75 nm x 75 nm
Tunneling bias: red: 0.1 V,
green: 1.0 V,
blue: 2.1 V

Islands of GdFe2, grown on W(110). Among the islands, the substrate is covered with a monolayer GdFe2. Notice the different colors of the monolayer and the top of the islands! Do you remember what it means? Different electronic structures! (It was explained with the image "Terbium on tungsten") This is the case because the alloy is stressed in the first monolayer. This alone may result in a changed electronic structure, but perhaps a different crystal structure may also play a role. We are still at it.

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