  We propose a scheme for the creation of robust entanglement between a movable
mirror and atomic ensemble at the macroscopic level in coupled optomechanical
system. In experimentally accessible parameter regimes, we show that critical
temperature of the bipartite continuous variable entanglement in our scheme can
be raised from previous 24 K [Vitali {\it et al.}, Phys. Rev. Lett.
\textbf{98}, 030405 (2007)] and 20 K [Genes {\it et al.}, Phys. Rev. A
\textbf{77}, 050307(R) (2008)] to 32 K. We also investigate the entanglement
transfer based on this coupled system. The scheme can be used for the
realization of quantum memories for continuous variable quantum information
processing and quantum-limited displacement measurements.
