Sample interview questions: What are some key experimental techniques used in condensed matter physics research?
Sample answer:
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X-ray diffraction (XRD): XRD is a non-destructive technique that provides information about the crystal structure of a material. It involves shining a beam of X-rays at a sample and measuring the intensity of the diffracted X-rays. The resulting diffraction pattern can be used to determine the crystal structure, lattice parameters, and atomic positions.
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Neutron scattering (NS): NS is similar to XRD but uses a beam of neutrons instead of X-rays. Neutrons are particularly sensitive to light elements such as hydrogen and oxygen, which makes NS a powerful tool for studying materials such as polymers, liquids, and biological systems.
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Scanning tunneling microscopy (STM): STM is a technique that allows scientists to image the surface of a material at the atomic level. It involves scanning a sharp metal tip over the surface of the material and measuring the tunneling current between the tip and the sample. The resulting image shows the topography of the surface, as well as information about the electronic structure of the material.
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Transmission electron microscopy (TEM) Read full answer
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