The project "Densities, structures and refractive indices of carbonate glasses at high pressure" is funded by the Deutsche Forschungsgemeinschaft (DFG), the PhD candidate will be part of the CLEAR group. The dissertation will be submitted at the University of Potsdam.

Within the research group CLEAR we endeavor to understand large scale geological processes that operate deep inside planets. Our approach is to recreate high-pressure/temperature conditions in the laboratory and examine various physical properties of geomaterials (minerals, rocks, glasses, and melts) in situ using state-of-the-art spectroscopic techniques. We then use these properties in collaboration with geodynamicists to create numerical models of planets.

We are looking for a highly motivated individual who wants to earn a PhD in geosciences and is interested in developing an expertise in spectroscopic measurements in a high-pressure device known as the diamond anvil cell. The primary research focus will be on measuring the refractive index and density of carbonate glasses at high pressure to infer related properties of carbonate melts in the Earth's mantle. The successful candidate will also collaborate closely with the group of Prof. Björn Winkler (Goethe Universität Frankfurt am Main) to gain insights into the structure-property relation in carbonate glasses/melts at high pressure. To foster this collaboration, another PhD candidate will be hired to work in Prof. Winkler's group.

Your responsibilities:

• Synthesis of carbonate glasses in the K2CO3-MgCO3 system
• All-optical measurements of refractive index and density of carbonate glasses at high-pressure/temperature conditions
• Proactive scientific interaction within the research group and with other groups at the GFZ
• Report progress regularly at group meetings, domestic, and international conferences
• Publication of the results in peer-reviewed journals

Your qualifications:

• Master degree (or equivalent) in Geosciences, Physics, Chemistry, or related discipline
• Strong interest in geophysics and challenging experimental work
• Basic knowledge of optical, infrared, and Raman spectroscopies
• Proficiency in written and spoken English
• Experience in diamond anvil cell or a related high-pressure technique is desirable
• Basic programming skills would be beneficial

Please, indicate specifically how you fit the position as well as your motivations for obtaining a PhD in Mineral Physics in a cover letter submitted with your application. In addition, provide a list of at least two references and their contact details who can evaluate your scientific work.