PHZ3400 Midterm Two Solution: Difference between revisions

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-==PHZ 3400 – Midterm Two Exam (with solutions) – April 10, 2009==
-===Problem 1===
-'' Explain the concept of the "Thermodynamic Limit", and present the corresponding domain wall argument (derivation of a formula) to estimate the relaxation time as a function of system size, at T < Tc.''
-The partition function which applies in this case is  <math>Z = \sum_{n}^{\infty}\varepsilon^{-\beta E_n}</math>  where n=number of particles.  As <math> n\rightarrow \infty</math>
-===Problem 2===
-''Sketch the magnetization of a ferromagnet as a function of temperature T, for (A) Zero external magnetic field and (B) Finite external magnetic field.  How is the behavior around the Curie Temperature (Tc) affected by the field?''
-===Problem 3===
-===Problem 4===

Latest revision as of 20:43, 17 March 2011