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Chin. Phys. B, 2010, Vol. 19(6): 067301    DOI: 10.1088/1674-1056/19/6/067301
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Spontaneous Josephson spin current in triplet superconductor/ferromagnet/triplet superconductor junctions

Xu Mao-Jie(徐茂杰) and Dou Xiao-Ming(窦晓鸣)
Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract  This paper theoretically studies Josephson spin current through triplet superconductor/ferromagnet/triplet superconductor junctions. At the ferromagnet/superconductor interfaces, the ferromagnetic scattering potential gives rise to coupling between the Andreev bound states and lifts their spin degeneracy. These spin-split Andreev states carry the Josephson spin current through the junctions. The generated spin supercurrent can be controlled by the magnetization of a ferromagnetic thin layer and bias voltage across the junctions.
Keywords:  triplet superconductor      Andreev states      Josephson spin current  
Received:  16 September 2009      Accepted manuscript online: 
PACS:  74.50.+r (Tunneling phenomena; Josephson effects)  
  74.45.+c (Proximity effects; Andreev reflection; SN and SNS junctions)  
  74.25.Fy  
  74.25.Ha (Magnetic properties including vortex structures and related phenomena)  
  75.70.Ak (Magnetic properties of monolayers and thin films)  
  75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)  

Cite this article: 

Xu Mao-Jie(徐茂杰) and Dou Xiao-Ming(窦晓鸣) Spontaneous Josephson spin current in triplet superconductor/ferromagnet/triplet superconductor junctions 2010 Chin. Phys. B 19 067301

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