Search

9 Nov 2014: form a group operation. This means that:. 1. a b = b a. ... 4. All numbers obey the associativeness law:(a b) c = a (b c).

18 Jan 2014: a uniform static magneticfield perpendicular to the plane, B = Bẑ (E > 0, B > 0). ... 6]. (b) Compute the behaviour of the zero-field magnetic susceptibilityχ = (φ/B)|B=0 close to the transition (both above and below).

18 Jan 2014: 2aχ 6m2χ = 1. where χ = m/B|B=0. Above the transition (a > 0), m(B = 0) = 0 andχ = 1/2a. ... Below the transition (a < 0), m(B = 0) =. a and χ = 1/4a.