  We performed low-temperature de Haas-van Alphen (dHvA) effect measurements on
a Ce$_{1-x}$Nd$_x$CoIn$_5$ series, for x = 0.02, 0.05, 0.1, and 1, down to T =
40 mK using torque magnetometry in magnetic felds up to 35 T. Our results
indicate that a Fermi-surface (FS) reconstruction occurs from a
quasi-two-dimensional (2D) topology for Nd-2% to a rather three-dimensional
(3D) for Nd-5%, thus reducing the possibility of perfect FS nesting. The FS
evolves further with increasing Nd content with no observed divergence of the
effective mass between Nd-2% and 10%, consistent with the crossing of a spin
density wave (SDW) type of quantum critical point (QCP). Our results elucidate
the origin of the Q-phase observed at the 5% Nd-doping level [Raymond et al.,
J. Phys. Soc. Jpn. 83, 013707 (2014)].
