MAGNETISM ELECTRON TRANSPORT MAGNETORESISTIVE LANTHANUM CALCIUM MANGANITE

176 Appendix B
Figure 3 at the 90% statistical confidence level. The T 3/2 term in Fe and Ni is
quite small but has nevertheless been extracted from the heat capacity data
[200-202].
γ(H) (mJ/mol-K 2 )
Field Dependence of the Density of States in SrRuO 3
38
37
36
35
34
34
33
32
Predicted from M vs. T
Single Crystal Data
0 2 4 6 8
Magnetic Field (Tesla)
Figure B- 3. The linear term of the heat capacity γ as a
function of magnetic field. Each circle is from a single c P,H
datum between 4.3 and 5 K with phonons subtracted: γ(H) =
(c P,H (T) - βT 3 )/T with β = 0.191 mJ/mol·K 4 . γ(H) for each square
was determined by fitting 15-20 data points between 6 and 12 K
to: c P,H (T) = γT + βT 3 . The triangles are calculated from the
magnetization data of a single crystal.
The linear-T term, γ, is significantly depressed in an 8 T magnetic field.
The inset to Figure B- 1 shows the difference between the zero-field cooled
data in zero field and each of the other two data sets, plotted as ∆c/T. The data