Sample interview questions: Can you discuss any experience you have with using spectroscopic techniques in solid-state physics research?
Sample answer:
During my PhD research, I employed a suite of spectroscopic techniques to investigate the electronic and magnetic properties of novel solid-state materials.
Raman Spectroscopy:
- Used to probe phonon modes and identify structural phase transitions.
- Studied the lattice dynamics of layered transition metal dichalcogenides and correlated oxides.
- Investigated the effects of strain and doping on phonon dispersion relations.
Photoluminescence Spectroscopy:
- Analyzed the optical bandgap and defect states in semiconductors and insulators.
- Studied the temperature and field dependence of exciton recombination in two-dimensional materials.
- Correlated photoluminescence measurements with transport and magnetic susceptibility data.
X-ray Absorption Spectroscopy (XAS):
- Performed X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) measurements at synchrotr… Read full answer
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