  Local density fluctuations near the QCD critical point can be probed by
intermittency analysis of scaled factorial moments in relativistic heavy-ion
collisions. We report the first measurement of intermittency for charged
particles in Au + Au collisions at $\sqrt{s_\mathrm{NN}}$ = 7.7-200 GeV from
the STAR experiment at RHIC. We observe scaling behaviors in central Au + Au
collisions, with the extracted scaling exponent decreasing from mid-central to
the most central Au + Au collisions. Furthermore, the scaling exponent exhibits
a non-monotonic energy dependence with a minimum around $\sqrt{s_\mathrm{NN}}$
= 20-30 GeV in central Au + Au collisions.
