Thermally generated magnetic fields in heavy-fermion superconductors

We calculate numerically the magnitude of the induced thermomagnetic field due to particle-hole asymmetry in heavy-fermion superconductors. Close to the transition temperature and for a phase shift of the order of N=0.9-/2, this field can be as high as 10-2 G for pure samples. The experimental detection of these induced fields and their orientation dependence can be of great help in identifying the internal structure of the order parameter in these exotic superconductors.