Answer to Question #51231 in Solid State Physics for JUGNU

Question

Answer in brief:
i) List the symmetry elements for BF3, which is a planar trigonal molecule.
ii) Draw the first Brillouin zone for a 2D square reciprocal lattice.
iii) Explain with a diagram what type of a bond is formed between Magnesium and
Oxygen.
iv) Explain how a linear monoatomic chain behaves as a low pass filter.
v) What are the basic assumptions of Einstein’s theory for the specific heat of a solid?
vi) Calculate the probability for an electron to be found at an energy of (EF +2kBT) in a
metal.
vii) Explain with the help of diagrams the magnetism in a superconductor when it is cooled
in the presence of a magnetic field.
viii) What is the significance of a negative effective mass?
ix) Write down the difference between diamagnetic and paramagnetic materials.
x) What is polymer degradation?