Chin. Phys. Lett.  2008, Vol. 25 Issue (2): 691-693    DOI:
Original Articles |
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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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.
Keywords: 74.45.+c      74.78.Fk      75.75.+a     
Received: 15 October 2007      Published: 30 January 2008
PACS:  74.45.+c (Proximity effects; Andreev reflection; SN and SNS junctions)  
  74.78.Fk (Multilayers, superlattices, heterostructures)  
  75.75.+a  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I2/0691
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JI Yi-Qun
NIU Zhi-Ping
FENG Cui-Di
XING Ding-Yu
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