  We show that the recently observed chirality in the charge ordered phase of
TiSe2 can be understood as a form of orbital ordering. The microscopic
mechanism driving the transition between the novel chiral state and the
non-chiral charge density wave is discussed, and shown to be of a general form,
thus allowing for a broad class of materials to display this type of orbitally
ordered chiral charge density wave.

Strongly Correlated Electrons;Materials Science