Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
12039519 | Materials Letters | 2019 | 10 Pages |
Abstract
Amorphisation effect on the surface of SnTe and GeTe samples under low Ar+ ion energy sputtering (160â¯eV) has been firstly observed. Scanning electron microscopy and Raman spectroscopy methods were used for the investigation. Microscope images show that ion bombardment changes significantly the morphology of SnTe and GeTe sample surfaces. Comparative Raman spectroscopy studies of the as-prepared and sputtered surfaces revealed that sputtering changes not only the surface morphology, but also the crystal structure of samples. Due to sputtering, the initial crystalline GeTe sample surface completely changed to amorphous, while the SnTe sample surface changed to a mixed amorphous-crystalline structure. This means that on the surface of IVB group binary tellurides an amorphisation can be evoked by low energy Ar+ ion bombardment, up to a few hundred electron volts energy.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Attila CsÃk, Dmytro M. Zayachuk, Vasyl E. Slynko, Ute Schmidt, Csaba Buga, Kálman Vad,