PHZ3400 Midterm Two Solution: Difference between revisions
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===Problem 2=== | ===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 3=== | ||
Revision as of 15:15, 15 April 2009
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.
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?