Abbamonte Group

Department of Physics and Seitz Materials Research Laboratory

'Publications' Category Archives

Discovery of “excitonium” published in Science

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We just published a paper finally demonstrating that TiSe2 contains a Bose condensate of excitons. The experimental signature is a soft plasmon that falls to zero frequency at Tc. Bert Halperin and Maurice Rice nicknamed this phase “excitonium” in their  1968 Rev. Mod. Phys. paper to emphasize the physical picture of an exciton condensate as an electronic crystal. […]