For this multi-part free response question, you may use the…
For this multi-part free response question, you may use the text box below to type in your answers if no equations, diagrams, or illustrations are involved. Otherwise, please write down your answer on blank papers. You have 10 minutes after you have completed this Honorlock exam to scan your handwritten answer (or take photos) and upload into Canvas (responding to the assignment “Exam 1 Supplement”). Make sure you label the individual parts clearly. FRQ1: Electron conduction in metals (13 points) The temperature dependence of the electrical resistivity of Cu is shown in the figure below. From the figure, we can identify three temperature ranges where the resistivity show strikingly different temperature dependencies: (i) at T < 4 K, the resistivity is nearly temperature independent (i.e.,
Read DetailsThe dispersion relationships of two different bands (A, soli…
The dispersion relationships of two different bands (A, solid line; B, dashed line) are illustrated in the figure below (assuming both curves are parabola). Compare the effective mass m* and density of states g(E) (at the same energy) for the two bands:
Read DetailsShown below is the calculated electronic band structure of C…
Shown below is the calculated electronic band structure of CsPbI3, which has the cubic perovskite crystal structure (from Becker et al., Nature 553, 189 (2018)). Assuming the energy calculation is accurate, we can determine that the cubic CsPbI3 is a(n):
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