  Heavy quarks (charm and bottom) are a sensitive probe of the Quark-Gluon
Plasma (QGP) created in high-energy nuclear collisions. The modification of
their phase-space in the QGP reflects the physical property of the QGP because
they are generated in the early stage of collisions and subsequently propagate
through the QGP. PHENIX has published the first measurement of the nuclear
modification factors $R_{\rm{AA}}$ of separated charm and bottom hadron decay
electrons in minimum bias Au+Au collisions at $\sqrt{s_{NN}}$ $=$ 200 GeV using
the 2011 data set. In these proceedings, we present
$R_{\rm{AA}}({c{\rightarrow}e})$ and $R_{\rm{AA}}({b{\rightarrow}e})$ in most
central Au+Au collisions at $\sqrt{s_{NN}}$ $=$ 200 GeV using 1/8 of our large
2014-2016 data set.
