{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture 4 - Revision - Case when one cannot have more than...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
2 Crash Revision of Basics (approximately 1 week, maybe less) Dislocations can also move differently, climb, requires addition movement of atoms Comment (for later): in a compound this gets more interesting. Show video’s of dislocation motion 2.5 Boltzmann, Fermi-Dirac and Bose-Einstein Distributions Distributions: Very quick since covered in 401 Issue: are particles distinguishable or not Classical Case: Boltzmann Distribution Probability of finding something at an energy E, temperature T is proportional to exp(-E/kT) Fermi-Dirac distribution
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Case when one cannot have more than one particle at a given site, for instance a vacancy Probability = 1/{1+exp([E-E F ]/kT)} E F = Fermi energy E=E F , probability is 0.5 E-E F >> kT tends to a Boltzmann distribution Also useful is the entropy for FD S = k{ xlnx + (1-x)ln(1-x)} 0 < x < 1 Bose-Einstein, we won’t use in this class Case when one can have many identical particles, e.g. in a laser Elasticity Ended up talking about the importance of boundary conditions in setting up a problem...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern