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Physicists at MIT have uncovered a new way to test whether or not a material is chiral, and have also found a way to enhance the overall chirality in a large piece of material. The material they used, titanium diselenide (TiSe2), is a transition-metal dichalcogenide (TMD) semimetal that has potential use in quantum devices.
The researchers achieved optical chiral induction in TiSe2 by shining light on the material while cooling it below a critical temperature. They observed that although TiSe2 at room temperature had no chirality, as its temperature decreased it reached a point where the balance of right-handed and left-handed electronic configurations was thrown off in favor of one chiral domain. They further found that this effect…READ MORE