Figure 34.6 temprature heat of normal and super- conducting aluminum. The al pha below T, by application of a weak (300-gauss) magnetic tick which d superconducting but has otherwise negligible fect on the specific heat, The Debye temperature is quite specific heat is dominated b the clectronic contribution throughout this temperature range (as can be seen from the fact that the normal-state curve is quite close to be linear). 'The discontinuity at T agrees well with the theo 34.22) ⊥h1」11 Ies-cn/c,=1,43. Well be 1.07 2.0 low T c, drops far bel resting the existen gy gap. (N, E. Phillips, Phys. Rer. 114. 676