Theory of tunneling effect in ferromagnetic metal /insulator / triplet superconductor junctions

摘要

A theory of tunneling conductance #signma#_T(eV) in ferromagnetic metal / insulator /triplet superconductor junction is presented. As the magnitude of the exchange interaction is increased, the conductance below the energy gap is reduced due to the breakdown of the retro-reflectivity in the Andreev reflection. We will discuss two types of the pair potential which are promising candidates for the pairing symmetries of superconducting Sr_2RuO_4.