Superconducting proximity effect and Majorana flat bands in the surface   of a Weyl semimetal
  We study the proximity effect between an s-wave superconductor (SC) and the surface states of a Weyl semimetal. An interesting two-dimensional SC forms in such an interface with properties resembling in certain aspects the Fu-Kane superconductor with some notable differences. In a Weyl semimetal with unbroken time reversal symmetry the interface SC supports completely flat Majorana bands in a linear Josephson junction with a {\pi} phase difference. We discuss stability of these bands against disorder and propose ways in which they can be observed experimentally. 
Anffany Chen and M. Franz
cond-mat.supr-con cond-mat.mes-hall cond-mat.str-el