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Postdoctoral Appointee - Exploratory Synthesis & Crystal Growth of Quantum Materials
Posted Jul 30, 2026 · We last checked this listing on Oct 6, 2026
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Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a material you discovered or grew for the first time. What did you learn from it?
What they are checking: Whether they have real exploratory synthesis experience and can describe it clearly.
Most exploratory synthesis attempts fail. How do you stay productive and decide when to move on?
What they are checking: Whether they can manage the uncertainty of discovery research.
What would you do
Your sample shows an interesting property but turns out to have an impurity phase. What do you do?
What they are checking: Whether they are careful about sample purity before making scientific claims.
About the work
How do you choose a flux for growing a new chalcogenide crystal?
What they are checking: Whether they understand solubility, reactivity and separation when choosing a molten flux.
When would you use Bridgman growth instead of chemical vapor transport, and why?
What they are checking: Whether they know the strengths and limits of different crystal growth methods.
Walk me through how you solve a crystal structure from single-crystal X-ray diffraction data.
What they are checking: Whether they can do structure determination themselves, which the posting lists as a requirement.
How do you decide which new compounds are worth trying to make when looking for superconductors?
What they are checking: Whether they have a chemical or physical intuition guiding exploratory synthesis, not random attempts.
You see a drop in resistance in a new material. How do you confirm it's actually superconducting?
What they are checking: Whether they know the standards for proving superconductivity, like zero resistance and a Meissner effect.
How would you connect a material's structure to its magnetic or electrical properties?
What they are checking: Whether they can establish structure-property relationships as the posting describes.
How do you handle air-sensitive halides or toxic elements safely during synthesis?
What they are checking: Whether they have safe lab habits with hazardous materials.
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Practice this out loudThe full job description
As published by Argonne National Laboratory.