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Theory of tunneling conductance for normal metal/insulator/triplet superconductor junctions | | Masashi Yamashiro
; Yukio Tanaka
; Yasunari Tanuma
; Satoshi Kashiwaya
; | | Date: |
8 Sep 1997 | | Subject: | Superconductivity | cond-mat.supr-con | | Affiliation: | Niigata University), Satoshi Kashiwaya(Electrotechnical Laboratory | | Abstract: | Tunneling conductance spectra of normal metal/insulator/triplet superconductor junctions are investigated theoretically. As triplet paring states we select several types of symmetries that are promising candidates for the superconducting states in UPt$_{3}$ and in Sr$_{2}$RuO$_{4}$. The calculated conductance spectra are sensitive to the orientation of the junction which reflects the anisotropy of the pairing states. They show either zero-bias conductance peaks or gap-like structures depending on the orientation of the junctions. The existence of a residual density of states, peculiar to nonunitary states, is shown to have a significant influence on the properties of the conductance spectra. Present results serve as a guidefor the experimental determination of the symmetry of the pair potentials in UPt$_{3}$ and Sr$_{2}$RuO$_{4}$. | | Source: | arXiv, cond-mat/9709096 | | Services: | Forum | Review | PDF | Favorites | |
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