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Physics Of Complex Inorganic Nano-Materials

Gertjan Koster

Designing oxide materials for advanced materials experiments and novel applications.

Thin film oxides are studied with two main goals: 1) New experiments with the aim to reveal (novel) electronic or magnetic degrees of freedom in a condensed matter system often require ad hoc designed materials either to meet the conditions they’re being interrogated at or match the used probes. 2) These very same materials systems (oxides) are expected to host a plethora of potentially technologically relevant properties, which further motivates their exploration in order to identify and demonstrate functionality.

Both goals can be achieved by having expertise in three areas: in situ spectroscopy of oxide thin films, the development of oxide thin film templates and the study of oxide thin film growth. Current focus application areas are: chemical sensors, brain inspired electronics and catalysis and energy conversion.

In situ Spectroscopy

In situ thin film (spectroscopic) characterization gives the opportunity to investigate intrinsic electronic properties of epitaxial systems by X-ray or electron spectroscopy as well as take advantage of different techniques for deposition, i.e., electron beam deposition and pulsed laser deposition. Because of the in situ-ness of the thin film synthesis, eliminating anomalies due to the interaction with ambient air, as well the fact that probing depth are of the order of the thin film thicknesses, a true comparison of electronic properties and transport properties are possible. Collaborations exist with UU, UBC/CLS, Soleil/Orsay, UvA/LCLS, PSI, Napels, DTU and EMAT, Antwerp.

Oxide thin film templates

Oxide thin film Growth