PhD Student position (f/m/d) in atmospheric science / aerosol research
part-time 75 %
Alkali feldspar is one of the major components of Earth’s crust and as such, constitutes a significant fraction of the atmospheric mineral dust. Given that feldspar can efficiently serve as an ice nucleating particle (INP) facilitating freezing of water at low supercooling, its impact on the ice formation in the atmospheric clouds can hardly be overestimated. The ice nucleating (IN) property of feldspar has been previously ascribed to crystal structure similarities between ice and feldspar, but the systematic study of the mechanisms underlying ice nucleation on alkali feldspar is still incomplete. This project aims at revealing the mechanism of ice nucleation active sites formation in natural feldspars as they undergo chemical and physical transformation from magmatic rocks to an airborne aerosol particle.
Organisationseinheit
Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
Ihre Aufgaben
The successful doctoral candidate will be responsible for characterization of IN efficiency of feldspar specimen using state of the art experimental facilities available at Karlsruhe Institute of Technology. The pristine and weathered feldspars will be characterized in droplet freezing assay setup mounted in optical and environmental scanning electron microscope (ESEM). Deposition freezing experiments will be conducted in the environmental chamber at the X-Ray synchrotron facility of the KIT IPS to obtain structural information of adsorbed water and mineral phase (see Figure). The experiments will be complemented by atomistic modelling performed by the collaboration group at the University of Vienna.
The Department of Atmospheric Aerosol Research of IMK seeks a highly motivated PhD student (f/m/d) interested in performing cutting-edge research in a close collaboration with two doctoral candidates based at the faculty of Earth Sciences, Geography and Astronomy and at the faculty of Physics at the University of Vienna (https://www.imk-aaf.kit.edu/OpenPositions_1761.php).
Eintrittstermin
01.08.2023
Ihre Qualifikation
- M.Sc. degree or equivalent in physics, environmental physics, geophysics, meteorology, or related fields
- Experience or basic knowledge of optical and scanning electron microscopy and X-Ray application
- Laboratory skills and strong motivation for experimental work
- Capacity for sustained independent work; ability to communicate and work in an international team
- Good communication skills, fluent English language in writing and speaking
Salary
Salary category 13, depending on the fulfillment of professional and personal requirements.
Contract duration
3 years
Application up to
30.06.2023
Contact person in line-management
For further information, please contact Dr. Alexei Kiselev, Tel: 0721/ 608-26662, E-Mail: alexei.kiselev@kit.edu
Bitte bewerben Sie sich online über den unten stehenden Button für die Ausschreibungsnummer 268/2023.
Ausschreibungsnummer: 268/2023
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Kontakt
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Karlsruher Institut für Technologie (KIT)
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