  One of the most important properties of topological insulators (TIs) is the
helical spin texture of the Dirac surface states, which has been theoretically
and experimentally argued to be left-handed helical above the Dirac point and
right handed helical below. However, since the spin is not a good quantum
number in these strongly spin-orbit coupled systems, this can not be a complete
statement, and we must consider the total angular momentum J = L + S that is a
contribution of the spin and orbital terms. Using a combination of orbital and
spin-resolved angle-resolved photoemission spectroscopy (ARPES), we show a
direct link between the different orbital and spin components, with a
"backwards" spin texture directly observed for the in-plane orbital states of
Bi2Se3.
