  We study heavy flavor properties at finite temperature in the framework of a
relativistic potential model. With an improved method to solve the three-body
Dirac equation, we determine a universal set of model parameters for both
mesons and baryons by fitting heavy flavor masses in vacuum. Taking heavy quark
potential from lattice QCD simulations in hot medium, we systematically
calculate heavy flavor binding energies and averaged sizes as functions of
temperature. The meson and baryons are separately sequentially dissociated in
the quark-gluon plasma, and the mesons can survive at higher temperature due to
the stronger potential between quark-antiquark pairs than that between
quark-quark pairs.
