Shape of Cooper pairs in a normal-metal/superconductor junction


Tanaka, Yukio and Asano, Yasuhiro and Golubov, Alexander A. (2008) Shape of Cooper pairs in a normal-metal/superconductor junction. Physical Review B: Condensed matter and materials physics, 77 (22). p. 220504. ISSN 1098-0121

open access
Abstract:In s-wave superconductors the Cooper pair wave function is isotropic in momentum space. This property may also be expected for Cooper pairs entering a normal metal from a superconductor due to the proximity effect. We show, however, that such a deduction is incorrect and the pairing function in a normal metal is surprisingly anisotropic because of quasiparticle interference. We calculate angle-resolved quasiparticle density of states in NS bilayers which reflects such anisotropic shape of the pairing function. We also propose a
magnetotunneling spectroscopy experiment which could confirm our predictions
Item Type:Article
Copyright:© 2008 American Physical Society
Science and Technology (TNW)
Research Group:
Link to this item:
Official URL:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page

Metis ID: 252477