Density of states and NMR relaxation rate in anisotropic superconductivity with intersecting line nodes

We show that the density of states in an anisotropic superconductor with intersecting line nodes in the gap function is proportional to E log(alpha Delta(0)/E) for \E\ much less than Delta(0), where Delta(0) is the maximum value of the gap function and alpha is constant, while it is proportional to E if the line nodes do not intersect. As a result, a logarithmic correction appears in the temperature dependence of the NMR relaxation rate and the specific heat, which can be observed experimentally. By comparing with those for the heavy fermion superconductors, we can obtain information about the symmetry of the gap function.