One of the most interesting, perplexing, and difficult things to understand in modern Physics is Phase transitions. There are many examples of this: transition from solid to liquid to gas, superconductivity, ferromagnetism and paramagnetism. The most difficult part is to model the interactions between the microscopic particles. There are various approaches to this, and it is still a growing area of research, and I will examine a few.
Perhaps one of the most simplistic attempts to model this was done by Landau. This approach involves expanding the Free energy as a function of the parameter (the parameter is the macroscopic quantity that we are interested in which could be Magnetism, superconductivity, etc) and the critical quantity (could be Temperature, or Magnetic field) around the critical point. We then differentiate with respect to the parameter and set it equal to zero to find the minima of the Free energy. There are a few problems with this approach. First, the Free energy......

Join Now to view the rest of this term paper!
Members: Login to view this research paper.

Title: Spin Models (Ising And Landau)
Approximate Word Count: 368
Approximate Pages: 2 (250 words per double-spaced page)

With the Term Papers Lab Membership Pass, you get instant access to every term paper on this site, including the term paper on Spin Models (Ising And Landau), for as long as you remain a member! That's over 100,000 online term papers and written research papers at your fingertips!

You could be reading our college term papers on Spin Models (Ising And Landau) in less than two minutes!

Other term papers sites charge almost $100 for a single term paper. At Term Papers Lab, you can get instant access to over 100,000 termpapers and sample research papers for as little as $29.95!

1. Spin Models (Ising And Landau)
   

   Spin models (Ising and Landau). One of the most interesting, perplexing, and difficult
   things to understand in modern Physics is Phase transitions. ... ...