  The ease with which the physical properties of graphene can be tuned suggests
a wide range of possible applications. Recently, strain engineering of these
properties has been of particular interest. Possible spintronic applications of
magnetically doped graphene systems have motivated recent theoretical
investigations of the so-called Ruderman-Kittel-Kasuya-Yosida (RKKY)
interaction between localized moments in graphene. In this work a combination
of analytic and numerical techniques are used to examine the effects of
uniaxial strain on such an interaction. A range of interesting features are
uncovered depending on the separation and strain directions. Amplification,
suppression, and oscillatory behavior are reported as a function of the strain
and mathematically transparent expressions predicting these features are
derived. Since a wide range of effects, including overall moment formation and
magnetotransport response, are underpinned by such interactions we predict that
the ability to manipulate the coupling by applying strain may lead to
interesting spintronic applications.
