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Spin-Triplet Andreev Reflection in Ferromagnet/Ferromangnet/s-Wave Superconductor Junctions |
| JI Yi-Qun;NIU Zhi-Ping;FENG Cui-Di;XING Ding-Yu |
| National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 |
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| Cite this article: |
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JI Yi-Qun, NIU Zhi-Ping, FENG Cui-Di et al 2008 Chin. Phys. Lett. 25 691-693 |
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Abstract Four-component Bogoliubov--de Gennes equations are applied to study the tunnelling conductance spectra G(E) of half-metallic ferromagnet/ferromagnet/s-wave superconductor tunnel junctions. It is found that only for noncollinear magnetizations, there exists nonzero G(E) structure
within the energy gap, which is a signature of appearance of the novel Andreev reflection and spin-triplet pairing correlations.
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| Keywords:
74.45.+c
74.78.Fk
75.75.+a
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Received: 15 October 2007
Published: 30 January 2008
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| PACS: |
74.45.+c
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(Proximity effects; Andreev reflection; SN and SNS junctions)
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74.78.Fk
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(Multilayers, superlattices, heterostructures)
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75.75.+a
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