@article{oai:nagoya.repo.nii.ac.jp:00009513,
 author = {Tanaka, Yukio and Asano, Yasuhiro and Golubov, Alexander A.},
 issue = {22},
 journal = {PHYSICAL REVIEW B},
 month = {Jun},
 note = {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.},
 pages = {220504--220504},
 title = {Shape of Cooper pairs in a normal-metal/superconductor junction},
 volume = {77},
 year = {2008}
}