The tunnelling conductance spectra of ferromagnet/PrOs4Sb12 junctions are theoretically investigated by using the Blonder-Tinkham-Klapwijk theory. Three pairs of possible candidate for the pairing symmetry of superconducting energy gap of the recently discovered heavy-fermion unconventional superconductor PrOs4Sb12 are chosen for calculation. We have studied the spin-polarization effect on the conductance spectra, with respect to different strength of ferromagnetism of the ferromagnet and different strength of the interface barrier. Moreover, we have discussed the influence of nodal structures of the superconducting energy gap on the conductance spectra. Different features of the tunnelling conductance spectra were got, which may serve as useful theoretical comparisons for future experiments.

中文翻译：

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铁磁体/ PrOs4Sb12结中隧穿电导的理论研究

利用Blonder-Tinkham-Klapwijk理论对铁磁体/ PrOs4Sb12结的隧穿电导谱进行了理论研究。为最近发现的重费米非常规超导体PrOs4Sb12的超导能隙的配对对称性选择三对可能的候选物进行计算。我们已经研究了自旋极化对电导谱的影响，涉及到铁磁体的铁磁性的不同强度和界面势垒的不同的强度。此外，我们已经讨论了超导能隙的节点结构对电导谱的影响。得到了隧道电导谱的不同特征，可以作为今后实验的有益的理论比较。