Berlin 2008 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 41: Poster SYM Hydrogen in Materials: New Developments

MM 41.5: Poster

Donnerstag, 28. Februar 2008, 18:00–20:00, Poster B

Hydrogen loading of nano crystalline niobium thin-films. — •Kai Nörthemann and Astrid Pundt — Institut für Materialphysik, Universität Göttingen

This contribution presents the phase transition in hydrogen loaded nano crystalline thin films.

As model the system of niobium with hydrogen was measured during gas phase loading. The phase transition is monitored in situ with the surface sensitive scanning tunneling microscopy (STM). The α and hydride phase can be distinguish due to the expansion of the hydride phase. We will show the arrangement of the hydride phase in the surrounding α phase. Due to the continuous taken STM images we also show the time dependency of the phase transition.

This work is financially supported by the DFG via SFB 602.