Sample interview questions: How do you approach investigating the quantum transport phenomena in solids?
Sample answer:
Investigating quantum transport phenomena in solids requires a systematic and rigorous approach. As a solid-state physicist, I would first identify the specific transport phenomenon I aim to study, such as electron or spin transport, and select an appropriate experimental setup or theoretical framework accordingly.
In experimental studies, I would focus on preparing high-quality samples with controlled composition, purity, and crystal structure. This could involve techniques like crystal growth, thin film deposition, or fabrication of nanostructures. Careful characterization of the samples using tools like X-ray diffraction, electron microscopy, or spectroscopy would be essential to ensure their suitability for the desired transport measurements.
To investigate quantum transport, I would employ various experimental techniques, such as electrical measurements, magneto-transport, or optical spectroscopy. These measurements can provide important insights into the behavior of charge carriers, their scattering mechanisms, and the influence of external fields or temperature. For instance, electrical transport measurements would involve applying a voltage or current to the sample and measuring the resulting resistance or conductance as a function of temperature, magnetic field, or other control parameters.
In addition to experimental approaches, theoretical modeling and simulations play a crucial role in understanding quantum transport phenomena in solids. I would employ methods such as density functional theory (DFT), tight-binding models, or quantum Monte Carlo simulat… Read full answer
Source: https://hireabo.com/job/5_0_12/Solid-State%20Physicist