  Using full-potential density functional calculations within local density
approximation (LDA), we predict that mechanically tunable band-gap and
quasi-particle-effective-mass are realizable in graphene/hexagonal-BN
hetero-bilayer (C/h-BN HBL) by application of in-plane homogeneous biaxial
strain. While providing one of the possible reasons for the experimentally
observed gap-less pristine-graphene-like electronic properties of C/h-BN HBL,
which theoretically has a narrow band-gap, we suggest a schematic experiment
for verification of our results which may find applications in
nano-electromechanical systems (NEMS), nano opto-mechanical systems (NOMS) and
other nano-devices based on C/h-BN HBL.
