Mechanism of spatially modulated superconducting and superfluid phases

我们从理论上研究了重费米子超导体CeCoIn5的高场低温超导相，指出在这两个新相中存在着FFLO和反铁磁序，它们都是顺磁断裂引起的新效应。获得了与实验观测相一致的满意结果。此外，我们还考虑了在零场中d波超导薄膜中存在类FFLO空间调制超导态的可能性，并论证了这种态相对于磁场的稳定性导致了有趣的磁相图，这一点可以在自然装置下的实验中得到验证。

We have theoretically studied the high field and low temperature superconducting phase of the heavy fermion superconductor CeCoIn5 and have pointed out the presence of FFLO and antiferromagnetic orders, both of which are novel effects induced by the paramagnetic pair-breaking, in the above-mentioned novel phase. Satisfactory results consistent with experimental observations have been obtained. Further, we have considered a possibility of a FFLO-like spatially modulated superconducting state in a d-wave superconducting film in zero field and argued that stability of this state against the magnetic field results in an intriguing magnetic phase diagram which may be verified in an experimental under a natural set up.