We study resonant tunneling through a superconducting double barrierstructure in graphene as a function of the system parameters. At each barrier,due to the proximity effect, an incident electron can either reflect as anelectron or a hole (specular as well as retro Andreev reflection in graphene).Similarly, transport across the barriers can occur via electrons as well as viathe crossed (specular and/or retro) Andreev channel, where a hole istransmitted nonlocally to the other lead. In this geometry, in the subgapregime, we find resonant suppression of Andreev reflection at certain energies,due to the formation of Andreev bound levels between the two superconductingbarriers, where the transmission probability T for electrons incident on thedouble barrier structure becomes unity. The evolution of the transport throughthe superconducting double barrier geometry as a function of the incidentenergy for various angles of incidence shows the damping of the resonance asnormal reflection between the barriers increases.
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