https://doi.org/10.1140/epjb/e2004-00203-1
Orientation dependence of proximity effect in ferromagnet/d-wave superconductor junctions
National Laboratory of Solid State Microstructures and
Department of Physics, Nanjing University, Nanjing 210093, P.R. China
Corresponding author: a dyxing@nju.edu.cn
Received:
26
November
2003
Revised:
10
February
2004
Published online:
12
July
2004
The Nambu spinor Green's function approach is applied to studying the proximity effect in ferromagnet/d-wave superconductor (FM/d-wave SC) junctions. It is found that the magnitude of the proximity effect depends to a great extent on the orientation of the SC crystal with respect to the interface normal. On the FM side, near the interface there are two different types of density of states (DOS) with superconducting features. On the SC side, the DOS near the interface is spin dependent, indicating a local coexistence of weak ferromagnetism and d-wave superconductivity.
PACS: 74.45.+c – Proximity effects; Andreev effect; SN and SNS junctions / 74.50.+r – Tunneling phenomena; point contacts, weak links, Josephson effects / 74.20.Rp – Pairing symmetries (other than s-wave)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004
