Amorphisation effect in binary tellurides under low energy Ar+ ion bombardment
| Autor: | V.E. Slynko, Ute Schmidt, Kálmán Vad, Csaba Buga, D.M. Zayachuk, Attila Csik |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Morphology (linguistics) Microscope Scanning electron microscope Analytical chemistry Fizikai tudományok 02 engineering and technology Crystal structure 010402 general chemistry 01 natural sciences law.invention symbols.namesake Természettudományok Sputtering law General Materials Science Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics Ion bombardment 0104 chemical sciences Amorphous solid Mechanics of Materials symbols 0210 nano-technology Raman spectroscopy |
| Popis: | Amorphisation effect on the surface of SnTe and GeTe samples under low Ar+ ion energy sputtering (160 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. |
| Databáze: | OpenAIRE |
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